From 3cd64cdbc9cdb5f0396275403610d0d0cf7f6069 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Fri, 4 Apr 2025 06:35:40 -0700
Subject: [PATCH] add time test data

---
 rust/pspp/src/format/display.rs               |  213 +
 .../src/format/testdata/display/dtime10.txt   | 1412 ++++
 .../src/format/testdata/display/dtime11.txt   | 1614 ++++
 .../src/format/testdata/display/dtime12.txt   | 1816 +++++
 .../src/format/testdata/display/dtime13.1.txt | 2220 ++++++
 .../src/format/testdata/display/dtime13.txt   | 2018 +++++
 .../src/format/testdata/display/dtime14.1.txt | 2624 +++++++
 .../src/format/testdata/display/dtime14.2.txt | 2826 +++++++
 .../src/format/testdata/display/dtime14.txt   | 2422 ++++++
 .../src/format/testdata/display/dtime15.1.txt | 3230 ++++++++
 .../src/format/testdata/display/dtime15.2.txt | 3432 ++++++++
 .../src/format/testdata/display/dtime15.3.txt | 3634 +++++++++
 .../src/format/testdata/display/dtime15.txt   | 3028 ++++++++
 .../src/format/testdata/display/dtime16.1.txt | 4038 ++++++++++
 .../src/format/testdata/display/dtime16.2.txt | 4240 ++++++++++
 .../src/format/testdata/display/dtime16.3.txt | 4442 +++++++++++
 .../src/format/testdata/display/dtime16.4.txt | 4644 +++++++++++
 .../src/format/testdata/display/dtime16.txt   | 3836 +++++++++
 .../src/format/testdata/display/dtime17.1.txt | 5048 ++++++++++++
 .../src/format/testdata/display/dtime17.2.txt | 5250 +++++++++++++
 .../src/format/testdata/display/dtime17.3.txt | 5452 +++++++++++++
 .../src/format/testdata/display/dtime17.4.txt | 5654 ++++++++++++++
 .../src/format/testdata/display/dtime17.5.txt | 5856 ++++++++++++++
 .../src/format/testdata/display/dtime17.txt   | 4846 ++++++++++++
 .../src/format/testdata/display/dtime18.1.txt | 6260 +++++++++++++++
 .../src/format/testdata/display/dtime18.2.txt | 6462 ++++++++++++++++
 .../src/format/testdata/display/dtime18.3.txt | 6664 ++++++++++++++++
 .../src/format/testdata/display/dtime18.4.txt | 6866 +++++++++++++++++
 .../src/format/testdata/display/dtime18.5.txt |  200 +
 .../src/format/testdata/display/dtime18.6.txt |  200 +
 .../src/format/testdata/display/dtime18.txt   | 6058 +++++++++++++++
 .../src/format/testdata/display/dtime8.txt    | 1008 +++
 .../src/format/testdata/display/dtime9.txt    | 1210 +++
 .../src/format/testdata/display/mtime10.1.txt |  200 +
 .../src/format/testdata/display/mtime10.2.txt |  200 +
 .../src/format/testdata/display/mtime10.3.txt |  200 +
 .../src/format/testdata/display/mtime10.4.txt |    0
 .../src/format/testdata/display/mtime10.txt   |  200 +
 .../src/format/testdata/display/mtime11.1.txt |  404 +
 .../src/format/testdata/display/mtime11.2.txt |  606 ++
 .../src/format/testdata/display/mtime11.3.txt |  808 ++
 .../src/format/testdata/display/mtime11.4.txt | 1010 +++
 .../src/format/testdata/display/mtime11.5.txt | 1212 +++
 .../src/format/testdata/display/mtime11.txt   |  202 +
 .../src/format/testdata/display/mtime12.5.txt | 1414 ++++
 .../src/format/testdata/display/mtime13.5.txt | 1616 ++++
 .../src/format/testdata/display/mtime14.5.txt | 1818 +++++
 .../src/format/testdata/display/mtime15.5.txt | 2020 +++++
 .../src/format/testdata/display/mtime16.5.txt | 2222 ++++++
 .../src/format/testdata/display/mtime5.txt    |  200 +
 .../src/format/testdata/display/mtime6.txt    |  402 +
 .../src/format/testdata/display/mtime7.1.txt  |  806 ++
 .../src/format/testdata/display/mtime7.txt    |  604 ++
 .../src/format/testdata/display/mtime8.1.txt  | 1210 +++
 .../src/format/testdata/display/mtime8.2.txt  | 1412 ++++
 .../src/format/testdata/display/mtime8.txt    | 1008 +++
 .../src/format/testdata/display/mtime9.1.txt  | 1816 +++++
 .../src/format/testdata/display/mtime9.2.txt  | 2018 +++++
 .../src/format/testdata/display/mtime9.3.txt  |  200 +
 .../src/format/testdata/display/mtime9.txt    | 1614 ++++
 .../format/testdata/display/time-input.txt    |  200 +
 .../src/format/testdata/display/time10.1.txt  |  200 +
 .../src/format/testdata/display/time10.txt    |  200 +
 .../src/format/testdata/display/time11.1.txt  |  604 ++
 .../src/format/testdata/display/time11.2.txt  |  806 ++
 .../src/format/testdata/display/time11.txt    |  402 +
 .../src/format/testdata/display/time12.1.txt  | 1210 +++
 .../src/format/testdata/display/time12.2.txt  | 1412 ++++
 .../src/format/testdata/display/time12.3.txt  | 1614 ++++
 .../src/format/testdata/display/time12.txt    | 1008 +++
 .../src/format/testdata/display/time13.1.txt  | 2018 +++++
 .../src/format/testdata/display/time13.2.txt  | 2220 ++++++
 .../src/format/testdata/display/time13.3.txt  | 2422 ++++++
 .../src/format/testdata/display/time13.4.txt  | 2624 +++++++
 .../src/format/testdata/display/time13.txt    | 1816 +++++
 .../src/format/testdata/display/time14.1.txt  | 3028 ++++++++
 .../src/format/testdata/display/time14.2.txt  | 3230 ++++++++
 .../src/format/testdata/display/time14.3.txt  | 3432 ++++++++
 .../src/format/testdata/display/time14.4.txt  | 3634 +++++++++
 .../src/format/testdata/display/time14.5.txt  | 3836 +++++++++
 .../src/format/testdata/display/time14.txt    | 2826 +++++++
 .../src/format/testdata/display/time15.1.txt  | 4240 ++++++++++
 .../src/format/testdata/display/time15.2.txt  | 4442 +++++++++++
 .../src/format/testdata/display/time15.3.txt  |  200 +
 .../src/format/testdata/display/time15.4.txt  |  402 +
 .../src/format/testdata/display/time15.5.txt  |  604 ++
 .../src/format/testdata/display/time15.6.txt  |  806 ++
 .../src/format/testdata/display/time15.txt    | 4038 ++++++++++
 .../src/format/testdata/display/time5.txt     |  200 +
 .../src/format/testdata/display/time6.txt     |  200 +
 .../src/format/testdata/display/time7.txt     |  402 +
 .../src/format/testdata/display/time8.txt     |  604 ++
 .../src/format/testdata/display/time9.txt     |  200 +
 93 files changed, 199225 insertions(+)
 create mode 100644 rust/pspp/src/format/testdata/display/dtime10.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime11.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime12.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime13.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime13.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime14.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime14.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime14.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime15.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime15.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime15.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime15.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime16.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime16.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime16.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime16.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime16.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime17.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.6.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime18.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime8.txt
 create mode 100644 rust/pspp/src/format/testdata/display/dtime9.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime10.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime10.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime10.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime10.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime10.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime11.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime12.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime13.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime14.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime15.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime16.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime6.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime7.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime7.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime8.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime8.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime8.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime9.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime9.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime9.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/mtime9.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time-input.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time10.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time10.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time11.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time11.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time11.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time12.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time12.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time12.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time12.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time13.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time13.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time13.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time13.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time13.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time14.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.1.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.2.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.3.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.4.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.6.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time15.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time5.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time6.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time7.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time8.txt
 create mode 100644 rust/pspp/src/format/testdata/display/time9.txt

diff --git a/rust/pspp/src/format/display.rs b/rust/pspp/src/format/display.rs
index 19e0f2a940..61b84bd0ea 100644
--- a/rust/pspp/src/format/display.rs
+++ b/rust/pspp/src/format/display.rs
@@ -2314,4 +2314,217 @@ mod test {
             ],
         );
     }
+
+    fn test_times(format: Format, expect: &[&str]) {
+        let parser = Format::new(Type::DTime, 40, 0).unwrap().parser();
+        static INPUTS: &[&str; 200] = &[
+            "0 0:0:0",
+            "0 4:50:38.12301",
+            "0 12:31:35.23453",
+            "0 12:47:53.34505",
+            "0 1:26:0.45615",
+            "0 20:58:11.56677",
+            "0 7:36:5.18964",
+            "0 15:43:49.83132",
+            "0 4:25:9.01293",
+            "0 6:49:27.52375",
+            "0 2:57:52.01565",
+            "0 16:45:44.86529",
+            "0 21:30:57.82047",
+            "0 4:25:9.15395",
+            "0 6:49:27.10533",
+            "0 2:57:52.48229",
+            "0 16:45:44.65827",
+            "0 21:30:57.58219",
+            "0 22:30:4.18347",
+            "0 1:56:51.59319",
+            "1 0:0:0",
+            "1 4:50:38.12301",
+            "1 12:31:35.23453",
+            "1 12:47:53.34505",
+            "1 1:26:0.45615",
+            "1 20:58:11.56677",
+            "1 7:36:5.18964",
+            "1 15:43:49.83132",
+            "1 4:25:9.01293",
+            "1 6:49:27.52375",
+            "1 2:57:52.01565",
+            "1 16:45:44.86529",
+            "1 21:30:57.82047",
+            "1 4:25:9.15395",
+            "1 6:49:27.10533",
+            "1 2:57:52.48229",
+            "1 16:45:44.65827",
+            "1 21:30:57.58219",
+            "1 22:30:4.18347",
+            "1 1:56:51.59319",
+            "2 0:0:0",
+            "2 4:50:38.12301",
+            "2 12:31:35.23453",
+            "2 12:47:53.34505",
+            "2 1:26:0.45615",
+            "2 20:58:11.56677",
+            "2 7:36:5.18964",
+            "2 15:43:49.83132",
+            "2 4:25:9.01293",
+            "2 6:49:27.52375",
+            "2 2:57:52.01565",
+            "2 16:45:44.86529",
+            "2 21:30:57.82047",
+            "2 4:25:9.15395",
+            "2 6:49:27.10533",
+            "2 2:57:52.48229",
+            "2 16:45:44.65827",
+            "2 21:30:57.58219",
+            "2 22:30:4.18347",
+            "2 1:56:51.59319",
+            "54 0:0:0",
+            "54 4:50:38.12301",
+            "54 12:31:35.23453",
+            "54 12:47:53.34505",
+            "54 1:26:0.45615",
+            "54 20:58:11.56677",
+            "54 7:36:5.18964",
+            "54 15:43:49.83132",
+            "54 4:25:9.01293",
+            "54 6:49:27.52375",
+            "54 2:57:52.01565",
+            "54 16:45:44.86529",
+            "54 21:30:57.82047",
+            "54 4:25:9.15395",
+            "54 6:49:27.10533",
+            "54 2:57:52.48229",
+            "54 16:45:44.65827",
+            "54 21:30:57.58219",
+            "54 22:30:4.18347",
+            "54 1:56:51.59319",
+            "681 0:0:0",
+            "681 4:50:38.12301",
+            "681 12:31:35.23453",
+            "681 12:47:53.34505",
+            "681 1:26:0.45615",
+            "681 20:58:11.56677",
+            "681 7:36:5.18964",
+            "681 15:43:49.83132",
+            "681 4:25:9.01293",
+            "681 6:49:27.52375",
+            "681 2:57:52.01565",
+            "681 16:45:44.86529",
+            "681 21:30:57.82047",
+            "681 4:25:9.15395",
+            "681 6:49:27.10533",
+            "681 2:57:52.48229",
+            "681 16:45:44.65827",
+            "681 21:30:57.58219",
+            "681 22:30:4.18347",
+            "681 1:56:51.59319",
+            "-0 0:0:0",
+            "-0 4:50:38.12301",
+            "-0 12:31:35.23453",
+            "-0 12:47:53.34505",
+            "-0 1:26:0.45615",
+            "-0 20:58:11.56677",
+            "-0 7:36:5.18964",
+            "-0 15:43:49.83132",
+            "-0 4:25:9.01293",
+            "-0 6:49:27.52375",
+            "-0 2:57:52.01565",
+            "-0 16:45:44.86529",
+            "-0 21:30:57.82047",
+            "-0 4:25:9.15395",
+            "-0 6:49:27.10533",
+            "-0 2:57:52.48229",
+            "-0 16:45:44.65827",
+            "-0 21:30:57.58219",
+            "-0 22:30:4.18347",
+            "-0 1:56:51.59319",
+            "-1 0:0:0",
+            "-1 4:50:38.12301",
+            "-1 12:31:35.23453",
+            "-1 12:47:53.34505",
+            "-1 1:26:0.45615",
+            "-1 20:58:11.56677",
+            "-1 7:36:5.18964",
+            "-1 15:43:49.83132",
+            "-1 4:25:9.01293",
+            "-1 6:49:27.52375",
+            "-1 2:57:52.01565",
+            "-1 16:45:44.86529",
+            "-1 21:30:57.82047",
+            "-1 4:25:9.15395",
+            "-1 6:49:27.10533",
+            "-1 2:57:52.48229",
+            "-1 16:45:44.65827",
+            "-1 21:30:57.58219",
+            "-1 22:30:4.18347",
+            "-1 1:56:51.59319",
+            "-2 0:0:0",
+            "-2 4:50:38.12301",
+            "-2 12:31:35.23453",
+            "-2 12:47:53.34505",
+            "-2 1:26:0.45615",
+            "-2 20:58:11.56677",
+            "-2 7:36:5.18964",
+            "-2 15:43:49.83132",
+            "-2 4:25:9.01293",
+            "-2 6:49:27.52375",
+            "-2 2:57:52.01565",
+            "-2 16:45:44.86529",
+            "-2 21:30:57.82047",
+            "-2 4:25:9.15395",
+            "-2 6:49:27.10533",
+            "-2 2:57:52.48229",
+            "-2 16:45:44.65827",
+            "-2 21:30:57.58219",
+            "-2 22:30:4.18347",
+            "-2 1:56:51.59319",
+            "-54 0:0:0",
+            "-54 4:50:38.12301",
+            "-54 12:31:35.23453",
+            "-54 12:47:53.34505",
+            "-54 1:26:0.45615",
+            "-54 20:58:11.56677",
+            "-54 7:36:5.18964",
+            "-54 15:43:49.83132",
+            "-54 4:25:9.01293",
+            "-54 6:49:27.52375",
+            "-54 2:57:52.01565",
+            "-54 16:45:44.86529",
+            "-54 21:30:57.82047",
+            "-54 4:25:9.15395",
+            "-54 6:49:27.10533",
+            "-54 2:57:52.48229",
+            "-54 16:45:44.65827",
+            "-54 21:30:57.58219",
+            "-54 22:30:4.18347",
+            "-54 1:56:51.59319",
+            "-681 0:0:0",
+            "-681 4:50:38.12301",
+            "-681 12:31:35.23453",
+            "-681 12:47:53.34505",
+            "-681 1:26:0.45615",
+            "-681 20:58:11.56677",
+            "-681 7:36:5.18964",
+            "-681 15:43:49.83132",
+            "-681 4:25:9.01293",
+            "-681 6:49:27.52375",
+            "-681 2:57:52.01565",
+            "-681 16:45:44.86529",
+            "-681 21:30:57.82047",
+            "-681 4:25:9.15395",
+            "-681 6:49:27.10533",
+            "-681 2:57:52.48229",
+            "-681 16:45:44.65827",
+            "-681 21:30:57.58219",
+            "-681 22:30:4.18347",
+            "-681 1:56:51.59319",
+        ];
+        assert_eq!(expect.len(), INPUTS.len());
+        for (input, expect) in INPUTS.iter().copied().zip(expect.iter().copied()) {
+            let value = parser.parse(input, UTF_8).unwrap();
+            let formatted = value.display(format, UTF_8).to_string();
+            assert_eq!(&formatted, expect);
+        }
+    }
+    
 }
diff --git a/rust/pspp/src/format/testdata/display/dtime10.txt b/rust/pspp/src/format/testdata/display/dtime10.txt
new file mode 100644
index 0000000000..8692b7769a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime10.txt
@@ -0,0 +1,1412 @@
+    00:00:00.000
+    04:50:38.123
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
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+ -16345:56:51.59
+])
+AT_CHECK([cat time15.5.out], [0], [dnl
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+ 00:00:00.000000
+ -04:50:38.12301
+ -12:31:35.23453
+ -12:47:53.34505
+ -01:26:00.45615
+ -20:58:11.56677
+ -07:36:05.18964
+ -15:43:49.83132
+ -04:25:09.01293
+ -06:49:27.52375
+ -02:57:52.01565
+ -16:45:44.86529
+ -21:30:57.82047
+ -04:25:09.15395
+ -06:49:27.10533
+ -02:57:52.48229
+ -16:45:44.65827
+ -21:30:57.58219
+ -22:30:04.18347
+ -01:56:51.59319
+ -24:00:00.00000
+ -28:50:38.12301
+ -36:31:35.23453
+ -36:47:53.34505
+ -25:26:00.45615
+ -44:58:11.56677
+ -31:36:05.18964
+ -39:43:49.83132
+ -28:25:09.01293
+ -30:49:27.52375
+ -26:57:52.01565
+ -40:45:44.86529
+ -45:30:57.82047
+ -28:25:09.15395
+ -30:49:27.10533
+ -26:57:52.48229
+ -40:45:44.65827
+ -45:30:57.58219
+ -46:30:04.18347
+ -25:56:51.59319
+ -48:00:00.00000
+ -52:50:38.12301
+ -60:31:35.23453
+ -60:47:53.34505
+ -49:26:00.45615
+ -68:58:11.56677
+ -55:36:05.18964
+ -63:43:49.83132
+ -52:25:09.01293
+ -54:49:27.52375
+ -50:57:52.01565
+ -64:45:44.86529
+ -69:30:57.82047
+ -52:25:09.15395
+ -54:49:27.10533
+ -50:57:52.48229
+ -64:45:44.65827
+ -69:30:57.58219
+ -70:30:04.18347
+ -49:56:51.59319
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
+  0 12:47
+  0 01:26
+  0 20:58
+  0 07:36
+  0 15:43
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 22:30
+  0 01:56
+  1 00:00
+  1 04:50
+  1 12:31
+  1 12:47
+  1 01:26
+  1 20:58
+  1 07:36
+  1 15:43
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 22:30
+  1 01:56
+  2 00:00
+  2 04:50
+  2 12:31
+  2 12:47
+  2 01:26
+  2 20:58
+  2 07:36
+  2 15:43
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
+ -1 12:31
+ -1 12:47
+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
+ -2 04:50
+ -2 12:31
+ -2 12:47
+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 22:30
+   0 01:56
+   1 00:00
+   1 04:50
+   1 12:31
+   1 12:47
+   1 01:26
+   1 20:58
+   1 07:36
+   1 15:43
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
+   2 04:50
+   2 12:31
+   2 12:47
+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 22:30
+   2 01:56
+  54 00:00
+  54 04:50
+  54 12:31
+  54 12:47
+  54 01:26
+  54 20:58
+  54 07:36
+  54 15:43
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 22:30
+  54 01:56
+ 681 00:00
+ 681 04:50
+ 681 12:31
+ 681 12:47
+ 681 01:26
+ 681 20:58
+ 681 07:36
+ 681 15:43
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 22:30
+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
+  -0 12:47
+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
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+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
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+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
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+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
+  -54 04:50
+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
+ -681 04:50
+ -681 12:31
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
diff --git a/rust/pspp/src/format/testdata/display/dtime11.txt b/rust/pspp/src/format/testdata/display/dtime11.txt
new file mode 100644
index 0000000000..3d8843e02c
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime11.txt
@@ -0,0 +1,1614 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
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+  1 21:30
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+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 22:30
+  1 01:56
+  2 00:00
+  2 04:50
+  2 12:31
+  2 12:47
+  2 01:26
+  2 20:58
+  2 07:36
+  2 15:43
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
+ -1 12:31
+ -1 12:47
+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
+ -2 04:50
+ -2 12:31
+ -2 12:47
+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 22:30
+   0 01:56
+   1 00:00
+   1 04:50
+   1 12:31
+   1 12:47
+   1 01:26
+   1 20:58
+   1 07:36
+   1 15:43
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
+   2 04:50
+   2 12:31
+   2 12:47
+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 22:30
+   2 01:56
+  54 00:00
+  54 04:50
+  54 12:31
+  54 12:47
+  54 01:26
+  54 20:58
+  54 07:36
+  54 15:43
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 22:30
+  54 01:56
+ 681 00:00
+ 681 04:50
+ 681 12:31
+ 681 12:47
+ 681 01:26
+ 681 20:58
+ 681 07:36
+ 681 15:43
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 22:30
+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
+  -0 12:47
+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
+  -54 04:50
+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
+ -681 04:50
+ -681 12:31
+ -681 12:47
+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
+   681 04:50
+   681 12:31
+   681 12:47
+   681 01:26
+   681 20:58
+   681 07:36
+   681 15:43
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
+  -681 04:50
+  -681 12:31
+  -681 12:47
+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
diff --git a/rust/pspp/src/format/testdata/display/dtime12.txt b/rust/pspp/src/format/testdata/display/dtime12.txt
new file mode 100644
index 0000000000..3c74402e6f
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime12.txt
@@ -0,0 +1,1816 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
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+  2 21:30
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+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
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+ ********
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+ ********
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+ ********
+ ********
+ ********
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+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
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+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
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+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
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+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
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+ -1 02:57
+ -1 16:45
+ -1 21:30
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+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
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+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
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+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
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+   0 01:56
+   1 00:00
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+   1 01:26
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+   1 15:43
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+   1 16:45
+   1 21:30
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+   1 06:49
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+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
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+   2 01:26
+   2 20:58
+   2 07:36
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+   2 21:30
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+   2 01:56
+  54 00:00
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+ 681 00:00
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+   0 00:00
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+ -54 00:00
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+ -54 20:58
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+ -54 16:45
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+ -54 01:56
+ *********
+ *********
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+ *********
+ *********
+ *********
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+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
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+ 2 01:26:00
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+ 2 04:25:09
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+ 2 02:57:52
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+ 0 00:00:00
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+   -0 07:36
+   -0 15:43
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+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
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+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
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+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
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+  1 00:00:00
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+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
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+  2 00:00:00
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+  2 16:45:44
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+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
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+  2 01:56:51
+ 54 00:00:00
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+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
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+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
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+ -0 12:31:35
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+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 02:57:52
+ -1 16:45:44
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+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
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+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
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+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
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+   -54 00:00
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+   -54 12:31
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+   -54 01:26
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+  -681 21:30
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
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+   1 00:00:00
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+  54 00:00:00
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+  54 01:26:00
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+   0 00:00:00
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+   -681 00:00
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diff --git a/rust/pspp/src/format/testdata/display/dtime13.1.txt b/rust/pspp/src/format/testdata/display/dtime13.1.txt
new file mode 100644
index 0000000000..f26cfd17f5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime13.1.txt
@@ -0,0 +1,2220 @@
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+])
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
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+  0 01:26
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+ 54 01:56
+ ********
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+  0 00:00
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+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
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+ 54 00:00:00
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+   681 00:00
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+  0 00:00:00
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+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
+  -681 04:50
+  -681 12:31
+  -681 12:47
+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
+ 681 04:50:38
+ 681 12:31:35
+ 681 12:47:53
+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
+   -681 04:50
+   -681 12:31
+   -681 12:47
+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  681 12:47:53
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+  681 20:58:11
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+  681 15:43:49
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+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
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+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
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+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime13.txt b/rust/pspp/src/format/testdata/display/dtime13.txt
new file mode 100644
index 0000000000..6b8efbfab6
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime13.txt
@@ -0,0 +1,2018 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
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+ -69:30:57.58219
+ -70:30:04.18347
+ -49:56:51.59319
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
+  0 12:47
+  0 01:26
+  0 20:58
+  0 07:36
+  0 15:43
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 22:30
+  0 01:56
+  1 00:00
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+  1 20:58
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+  1 15:43
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 22:30
+  1 01:56
+  2 00:00
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+  2 12:31
+  2 12:47
+  2 01:26
+  2 20:58
+  2 07:36
+  2 15:43
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
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+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
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+ -2 12:31
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+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
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+   0 21:30
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+   0 01:56
+   1 00:00
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+   1 01:26
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+   1 15:43
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+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
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+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
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+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
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+   2 16:45
+   2 21:30
+   2 04:25
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+   2 16:45
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+   2 22:30
+   2 01:56
+  54 00:00
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+  54 22:30
+  54 01:56
+ 681 00:00
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+   0 00:00
+  -0 04:50
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -1 00:00
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+  -1 01:26
+  -1 20:58
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+ -54 00:00
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+ -54 20:58
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+ -54 15:43
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+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
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+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
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+ 2 01:26:00
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+ 2 02:57:52
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+ 2 21:30:57
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+ 2 01:56:51
+   54 00:00
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+ 0 00:00:00
+   -0 04:50
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+   -0 01:26
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+   -0 07:36
+   -0 15:43
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+   -1 00:00
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+   -2 01:56
+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
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+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
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+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
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+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
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+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
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+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
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+ 54 16:45:44
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+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 16:45
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+   -54 04:25
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+   -54 01:56
+  -681 00:00
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+  -681 07:36
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+  -681 21:30
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
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+   0 04:25:09
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+   0 02:57:52
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+   0 16:45:44
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+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
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+   1 04:25:09
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+   1 02:57:52
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+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
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+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
+   -681 04:50
+   -681 12:31
+   -681 12:47
+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime14.1.txt b/rust/pspp/src/format/testdata/display/dtime14.1.txt
new file mode 100644
index 0000000000..7c2269af14
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime14.1.txt
@@ -0,0 +1,2624 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
+   -52:25:09.013
+   -54:49:27.524
+   -50:57:52.016
+   -64:45:44.865
+   -69:30:57.820
+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
+   07:36:05.1896
+   15:43:49.8313
+   04:25:09.0129
+   06:49:27.5238
+   02:57:52.0156
+   16:45:44.8653
+   21:30:57.8205
+   04:25:09.1539
+   06:49:27.1053
+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
+   28:50:38.1230
+   36:31:35.2345
+   36:47:53.3451
+   25:26:00.4561
+   44:58:11.5668
+   31:36:05.1896
+   39:43:49.8313
+   28:25:09.0129
+   30:49:27.5237
+   26:57:52.0157
+   40:45:44.8653
+   45:30:57.8205
+   28:25:09.1540
+   30:49:27.1053
+   26:57:52.4823
+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
+   48:00:00.0000
+   52:50:38.1230
+   60:31:35.2345
+   60:47:53.3451
+   49:26:00.4562
+   68:58:11.5668
+   55:36:05.1896
+   63:43:49.8313
+   52:25:09.0129
+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
+   69:30:57.8205
+   52:25:09.1540
+   54:49:27.1053
+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
+ 1300:50:38.1230
+ 1308:31:35.2345
+ 1308:47:53.3450
+ 1297:26:00.4561
+ 1316:58:11.5668
+ 1303:36:05.1896
+ 1311:43:49.8313
+ 1300:25:09.0129
+ 1302:49:27.5237
+ 1298:57:52.0157
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+ 1317:30:57.8205
+ 1300:25:09.1540
+ 1302:49:27.1053
+ 1298:57:52.4823
+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
+ 16344:00:00.000
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+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
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+ 16359:43:49.831
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+ 16345:56:51.593
+   00:00:00.0000
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+  -01:26:00.4561
+  -20:58:11.5668
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+  -02:57:52.0156
+  -16:45:44.8653
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+  -04:25:09.1539
+  -06:49:27.1053
+  -02:57:52.4823
+  -16:45:44.6583
+  -21:30:57.5822
+  -22:30:04.1835
+  -01:56:51.5932
+  -24:00:00.0000
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+  -36:31:35.2345
+  -36:47:53.3451
+  -25:26:00.4561
+  -44:58:11.5668
+  -31:36:05.1896
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+  -28:25:09.0129
+  -30:49:27.5237
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+  -45:30:57.8205
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+  -26:57:52.4823
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+  -45:30:57.5822
+  -46:30:04.1835
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+  -48:00:00.0000
+  -52:50:38.1230
+  -60:31:35.2345
+  -60:47:53.3451
+  -49:26:00.4562
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+  -55:36:05.1896
+  -63:43:49.8313
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+  -54:49:27.5237
+  -50:57:52.0156
+  -64:45:44.8653
+  -69:30:57.8205
+  -52:25:09.1540
+  -54:49:27.1053
+  -50:57:52.4823
+  -64:45:44.6583
+  -69:30:57.5822
+  -70:30:04.1835
+  -49:56:51.5932
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
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+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
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+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
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+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
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+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
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+ -16360:45:44.66
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+])
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+])
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
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+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
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+ 1 02:57:52
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+ 1 21:30:57
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+ 0 00:00:00
+   -0 04:50
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+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
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+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
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+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
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+ 54 04:25:09
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+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 04:25:09
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+ -1 02:57:52
+ -1 16:45:44
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+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
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+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
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+ -2 02:57:52
+ -2 16:45:44
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+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+   -54 00:00
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+   -54 07:36
+   -54 15:43
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+  -681 00:00
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 01:26:00
+   2 20:58:11
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+   2 15:43:49
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
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+  54 04:25:09
+  54 06:49:27
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+  54 16:45:44
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+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
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+ 681 07:36:05
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+ 681 04:25:09
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
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+  -0 01:26:00
+  -0 20:58:11
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+  -0 02:57:52
+  -0 16:45:44
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+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
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+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
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+  -2 12:31:35
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+  -2 01:26:00
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+  -2 06:49:27
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+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
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+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
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+ -54 04:25:09
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+ -54 02:57:52
+ -54 16:45:44
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+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
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+ -54 01:56:51
+   -681 00:00
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+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
+     1 04:50:38
+     1 12:31:35
+     1 12:47:53
+     1 01:26:00
+     1 20:58:11
+     1 07:36:05
+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
+     2 04:50:38
+     2 12:31:35
+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
+    54 04:50:38
+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
+    54 15:43:49
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 22:30:04
+    54 01:56:51
+   681 00:00:00
+   681 04:50:38
+   681 12:31:35
+   681 12:47:53
+   681 01:26:00
+   681 20:58:11
+   681 07:36:05
+   681 15:43:49
+   681 04:25:09
+   681 06:49:27
+   681 02:57:52
+   681 16:45:44
+   681 21:30:57
+   681 04:25:09
+   681 06:49:27
+   681 02:57:52
+   681 16:45:44
+   681 21:30:57
+   681 22:30:04
+   681 01:56:51
+     0 00:00:00
+    -0 04:50:38
+    -0 12:31:35
+    -0 12:47:53
+    -0 01:26:00
+    -0 20:58:11
+    -0 07:36:05
+    -0 15:43:49
+    -0 04:25:09
+    -0 06:49:27
+    -0 02:57:52
+    -0 16:45:44
+    -0 21:30:57
+    -0 04:25:09
+    -0 06:49:27
+    -0 02:57:52
+    -0 16:45:44
+    -0 21:30:57
+    -0 22:30:04
+    -0 01:56:51
+    -1 00:00:00
+    -1 04:50:38
+    -1 12:31:35
+    -1 12:47:53
+    -1 01:26:00
+    -1 20:58:11
+    -1 07:36:05
+    -1 15:43:49
+    -1 04:25:09
+    -1 06:49:27
+    -1 02:57:52
+    -1 16:45:44
+    -1 21:30:57
+    -1 04:25:09
+    -1 06:49:27
+    -1 02:57:52
+    -1 16:45:44
+    -1 21:30:57
+    -1 22:30:04
+    -1 01:56:51
+    -2 00:00:00
+    -2 04:50:38
+    -2 12:31:35
+    -2 12:47:53
+    -2 01:26:00
+    -2 20:58:11
+    -2 07:36:05
+    -2 15:43:49
+    -2 04:25:09
+    -2 06:49:27
+    -2 02:57:52
+    -2 16:45:44
+    -2 21:30:57
+    -2 04:25:09
+    -2 06:49:27
+    -2 02:57:52
+    -2 16:45:44
+    -2 21:30:57
+    -2 22:30:04
+    -2 01:56:51
+   -54 00:00:00
+   -54 04:50:38
+   -54 12:31:35
+   -54 12:47:53
+   -54 01:26:00
+   -54 20:58:11
+   -54 07:36:05
+   -54 15:43:49
+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
+   -54 21:30:57
+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
+   -54 21:30:57
+   -54 22:30:04
+   -54 01:56:51
+  -681 00:00:00
+  -681 04:50:38
+  -681 12:31:35
+  -681 12:47:53
+  -681 01:26:00
+  -681 20:58:11
+  -681 07:36:05
+  -681 15:43:49
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
+   0 01:26:00.5
+   0 20:58:11.6
+   0 07:36:05.2
+   0 15:43:49.8
+   0 04:25:09.0
+   0 06:49:27.5
+   0 02:57:52.0
+   0 16:45:44.9
+   0 21:30:57.8
+   0 04:25:09.2
+   0 06:49:27.1
+   0 02:57:52.5
+   0 16:45:44.7
+   0 21:30:57.6
+   0 22:30:04.2
+   0 01:56:51.6
+   1 00:00:00.0
+   1 04:50:38.1
+   1 12:31:35.2
+   1 12:47:53.3
+   1 01:26:00.5
+   1 20:58:11.6
+   1 07:36:05.2
+   1 15:43:49.8
+   1 04:25:09.0
+   1 06:49:27.5
+   1 02:57:52.0
+   1 16:45:44.9
+   1 21:30:57.8
+   1 04:25:09.2
+   1 06:49:27.1
+   1 02:57:52.5
+   1 16:45:44.7
+   1 21:30:57.6
+   1 22:30:04.2
+   1 01:56:51.6
+   2 00:00:00.0
+   2 04:50:38.1
+   2 12:31:35.2
+   2 12:47:53.3
+   2 01:26:00.5
+   2 20:58:11.6
+   2 07:36:05.2
+   2 15:43:49.8
+   2 04:25:09.0
+   2 06:49:27.5
+   2 02:57:52.0
+   2 16:45:44.9
+   2 21:30:57.8
+   2 04:25:09.2
+   2 06:49:27.1
+   2 02:57:52.5
+   2 16:45:44.7
+   2 21:30:57.6
+   2 22:30:04.2
+   2 01:56:51.6
+  54 00:00:00.0
+  54 04:50:38.1
+  54 12:31:35.2
+  54 12:47:53.3
+  54 01:26:00.5
+  54 20:58:11.6
+  54 07:36:05.2
+  54 15:43:49.8
+  54 04:25:09.0
+  54 06:49:27.5
+  54 02:57:52.0
+  54 16:45:44.9
+  54 21:30:57.8
+  54 04:25:09.2
+  54 06:49:27.1
+  54 02:57:52.5
+  54 16:45:44.7
+  54 21:30:57.6
+  54 22:30:04.2
+  54 01:56:51.6
+ 681 00:00:00.0
+ 681 04:50:38.1
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+ 681 12:47:53.3
+ 681 01:26:00.5
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+ 681 02:57:52.5
+ 681 16:45:44.7
+ 681 21:30:57.6
+ 681 22:30:04.2
+ 681 01:56:51.6
+   0 00:00:00.0
+  -0 04:50:38.1
+  -0 12:31:35.2
+  -0 12:47:53.3
+  -0 01:26:00.5
+  -0 20:58:11.6
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+  -0 15:43:49.8
+  -0 04:25:09.0
+  -0 06:49:27.5
+  -0 02:57:52.0
+  -0 16:45:44.9
+  -0 21:30:57.8
+  -0 04:25:09.2
+  -0 06:49:27.1
+  -0 02:57:52.5
+  -0 16:45:44.7
+  -0 21:30:57.6
+  -0 22:30:04.2
+  -0 01:56:51.6
+  -1 00:00:00.0
+  -1 04:50:38.1
+  -1 12:31:35.2
+  -1 12:47:53.3
+  -1 01:26:00.5
+  -1 20:58:11.6
+  -1 07:36:05.2
+  -1 15:43:49.8
+  -1 04:25:09.0
+  -1 06:49:27.5
+  -1 02:57:52.0
+  -1 16:45:44.9
+  -1 21:30:57.8
+  -1 04:25:09.2
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+  -1 02:57:52.5
+  -1 16:45:44.7
+  -1 21:30:57.6
+  -1 22:30:04.2
+  -1 01:56:51.6
+  -2 00:00:00.0
+  -2 04:50:38.1
+  -2 12:31:35.2
+  -2 12:47:53.3
+  -2 01:26:00.5
+  -2 20:58:11.6
+  -2 07:36:05.2
+  -2 15:43:49.8
+  -2 04:25:09.0
+  -2 06:49:27.5
+  -2 02:57:52.0
+  -2 16:45:44.9
+  -2 21:30:57.8
+  -2 04:25:09.2
+  -2 06:49:27.1
+  -2 02:57:52.5
+  -2 16:45:44.7
+  -2 21:30:57.6
+  -2 22:30:04.2
+  -2 01:56:51.6
+ -54 00:00:00.0
+ -54 04:50:38.1
+ -54 12:31:35.2
+ -54 12:47:53.3
+ -54 01:26:00.5
+ -54 20:58:11.6
+ -54 07:36:05.2
+ -54 15:43:49.8
+ -54 04:25:09.0
+ -54 06:49:27.5
+ -54 02:57:52.0
+ -54 16:45:44.9
+ -54 21:30:57.8
+ -54 04:25:09.2
+ -54 06:49:27.1
+ -54 02:57:52.5
+ -54 16:45:44.7
+ -54 21:30:57.6
+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
+  -681 04:50:38
+  -681 12:31:35
+  -681 12:47:53
+  -681 01:26:00
+  -681 20:58:11
+  -681 07:36:05
+  -681 15:43:49
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime14.2.txt b/rust/pspp/src/format/testdata/display/dtime14.2.txt
new file mode 100644
index 0000000000..3f6a32de0a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime14.2.txt
@@ -0,0 +1,2826 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
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+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
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+  1297:26:00.456
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+  1303:36:05.190
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+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
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+  1298:57:52.482
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+ 16360:45:44.658
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+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
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+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
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+  1 21:30
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+  2 21:30
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+  2 06:49
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+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
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+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
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+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
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+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
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+ -2 12:31
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+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
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+   0 21:30
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+   0 01:56
+   1 00:00
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+   1 12:31
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+   1 01:26
+   1 20:58
+   1 07:36
+   1 15:43
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+   1 16:45
+   1 21:30
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+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
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+   2 01:26
+   2 20:58
+   2 07:36
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+   2 21:30
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+   2 01:56
+  54 00:00
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+ 681 00:00
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+   0 00:00
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -0 01:56
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+  -1 01:26
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+ -54 00:00
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+ -54 20:58
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+ -54 06:49
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+ -54 16:45
+ -54 21:30
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+ -54 16:45
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+ -54 01:56
+ *********
+ *********
+ *********
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+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
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+ 1 16:45:44
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+ 2 01:26:00
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+ 2 04:25:09
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+ 2 02:57:52
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+ 2 21:30:57
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+   54 00:00
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+ 0 00:00:00
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+   -0 01:26
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+   -0 07:36
+   -0 15:43
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+   -1 21:30
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+   -2 01:56
+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
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+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 01:26:00
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+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
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+  2 00:00:00
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+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
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+  2 01:56:51
+ 54 00:00:00
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+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
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+ 54 06:49:27
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+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
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+ -0 12:31:35
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+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
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+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
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+ -2 16:45:44
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+   -54 00:00
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+   -54 12:31
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+   -54 01:26
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+  -681 00:00
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+  -681 21:30
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
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+   1 00:00:00
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+   2 01:56:51
+  54 00:00:00
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+  54 12:31:35
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+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
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+  54 04:25:09
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+ 681 01:56:51
+   0 00:00:00
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+ -54 16:45:44
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+ -54 01:56:51
+   -681 00:00
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
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+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
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+    2 16:45:44
+    2 21:30:57
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+    2 06:49:27
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+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
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+   54 04:25:09
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+   54 16:45:44
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+   54 01:56:51
+  681 00:00:00
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 01:26:00
+   -0 20:58:11
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+   -0 04:25:09
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+   -0 16:45:44
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+   -0 22:30:04
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+   -1 00:00:00
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+   -1 01:26:00
+   -1 20:58:11
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+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
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+   -2 07:36:05
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+   -2 04:25:09
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+   -2 04:25:09
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+   -2 22:30:04
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+  -54 00:00:00
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
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+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
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+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
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+ 54 04:25:09.0
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+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
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+ 54 16:45:44.7
+ 54 21:30:57.6
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+ 54 01:56:51.6
+  681 00:00:00
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+  0 00:00:00.0
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+ -0 01:56:51.6
+ -1 00:00:00.0
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+ -1 01:26:00.5
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+ -1 04:25:09.0
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+ -1 16:45:44.7
+ -1 21:30:57.6
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+ -1 01:56:51.6
+ -2 00:00:00.0
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+ -2 01:26:00.5
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+ -2 15:43:49.8
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+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
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+  -54 01:26:00
+  -54 20:58:11
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+  -54 16:45:44
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
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+     1 00:00:00
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+     1 16:45:44
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+     1 22:30:04
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+     2 00:00:00
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+     2 12:31:35
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+     2 01:26:00
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+     2 07:36:05
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+     2 04:25:09
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+    54 00:00:00
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+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
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+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
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+    54 01:56:51
+   681 00:00:00
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+   681 16:45:44
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+   681 01:56:51
+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+   -54 16:45:44
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+   -54 22:30:04
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+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   0 00:00:00.0
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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diff --git a/rust/pspp/src/format/testdata/display/dtime14.txt b/rust/pspp/src/format/testdata/display/dtime14.txt
new file mode 100644
index 0000000000..eab7f92dc8
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime14.txt
@@ -0,0 +1,2422 @@
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+])
+AT_CHECK([cat time15.4.out], [0], [dnl
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+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
+  -54 04:50
+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 04:25
+  -54 06:49
+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
+ -681 04:50
+ -681 12:31
+ -681 12:47
+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
+   681 04:50
+   681 12:31
+   681 12:47
+   681 01:26
+   681 20:58
+   681 07:36
+   681 15:43
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
+  -681 04:50
+  -681 12:31
+  -681 12:47
+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
+ 681 04:50:38
+ 681 12:31:35
+ 681 12:47:53
+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
+   -681 04:50
+   -681 12:31
+   -681 12:47
+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
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+  0 01:56:51.6
+  1 00:00:00.0
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+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
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+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
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+  681 15:43:49
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+  681 06:49:27
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+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
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+ -681 16:45:44
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+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
+     1 04:50:38
+     1 12:31:35
+     1 12:47:53
+     1 01:26:00
+     1 20:58:11
+     1 07:36:05
+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
+     2 04:50:38
+     2 12:31:35
+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
+    54 04:50:38
+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
+    54 15:43:49
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 22:30:04
+    54 01:56:51
+   681 00:00:00
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+   681 12:47:53
+   681 01:26:00
+   681 20:58:11
+   681 07:36:05
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+     0 00:00:00
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+    -0 01:26:00
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+    -1 00:00:00
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+    -1 15:43:49
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+    -1 16:45:44
+    -1 21:30:57
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+    -1 06:49:27
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+    -1 16:45:44
+    -1 21:30:57
+    -1 22:30:04
+    -1 01:56:51
+    -2 00:00:00
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+    -2 01:26:00
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+    -2 04:25:09
+    -2 06:49:27
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+    -2 16:45:44
+    -2 21:30:57
+    -2 04:25:09
+    -2 06:49:27
+    -2 02:57:52
+    -2 16:45:44
+    -2 21:30:57
+    -2 22:30:04
+    -2 01:56:51
+   -54 00:00:00
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+   -54 12:31:35
+   -54 12:47:53
+   -54 01:26:00
+   -54 20:58:11
+   -54 07:36:05
+   -54 15:43:49
+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
+   -54 21:30:57
+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
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+   -54 22:30:04
+   -54 01:56:51
+  -681 00:00:00
+  -681 04:50:38
+  -681 12:31:35
+  -681 12:47:53
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+  -681 20:58:11
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+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime15.1.txt b/rust/pspp/src/format/testdata/display/dtime15.1.txt
new file mode 100644
index 0000000000..8ed4724c71
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime15.1.txt
@@ -0,0 +1,3230 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
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+    04:25:09.154
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+    02:57:52.482
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+    22:30:04.183
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+    24:00:00.000
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+    25:26:00.456
+    44:58:11.567
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+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
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+    55:36:05.190
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+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
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+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
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+  1302:49:27.105
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+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
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+ 16356:47:53.345
+ 16345:26:00.456
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+ 16351:36:05.190
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+ 16360:45:44.865
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+ 16346:57:52.482
+ 16360:45:44.658
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+ 16366:30:04.183
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+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
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+   -04:25:09.013
+   -06:49:27.524
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+   -02:57:52.482
+   -16:45:44.658
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+   -01:56:51.593
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+   -25:26:00.456
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+   -39:43:49.831
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+   -26:57:52.016
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+   -49:26:00.456
+   -68:58:11.567
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+   -50:57:52.016
+   -64:45:44.865
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+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
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+ -1297:26:00.456
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+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
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+ -16356:47:53.35
+ -16345:26:00.46
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+ -16351:36:05.19
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+ -16348:25:09.01
+ -16350:49:27.52
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+ -16360:45:44.87
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+ -16348:25:09.15
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+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
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+   04:25:09.1539
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+   16:45:44.6583
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+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
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+   36:47:53.3451
+   25:26:00.4561
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+   28:25:09.0129
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+   40:45:44.8653
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+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
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+   49:26:00.4562
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+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
+   69:30:57.8205
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+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
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+   49:56:51.5932
+ 1296:00:00.0000
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+ 1298:57:52.4823
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+  -01:26:00.4561
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+  -04:25:09.1539
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+  -16:45:44.6583
+  -21:30:57.5822
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+  -01:56:51.5932
+  -24:00:00.0000
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+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
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+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
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+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
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+  -54 16:45
+  -54 21:30
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+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:26
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+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 06:49
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+   -54 16:45
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+   -54 01:56
+  -681 00:00
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
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+ 681 02:57:52
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+ 681 02:57:52
+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
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+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
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+  -1 15:43:49
+  -1 04:25:09
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+  -1 02:57:52
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+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
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+    0 04:25:09
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+    0 02:57:52
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+    0 16:45:44
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+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
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+    1 02:57:52
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+    1 01:56:51
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+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
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+    2 06:49:27
+    2 02:57:52
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+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 01:26:00
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+   54 07:36:05
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+   54 04:25:09
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+  681 00:00:00
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+  681 01:56:51
+    0 00:00:00
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+   -1 16:45:44
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+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
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+   -2 20:58:11
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+  -54 01:26:00
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
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+  0 04:25:09.0
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+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
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+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
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+  2 15:43:49.8
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+  2 16:45:44.7
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+ 54 16:45:44.9
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+ 54 16:45:44.7
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+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
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+  -54 00:00:00
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+  -54 16:45:44
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 01:56:51
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+     1 16:45:44
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+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 01:26:00
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+     2 07:36:05
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+     2 04:25:09
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+     2 16:45:44
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+    54 00:00:00
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+    54 01:26:00
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+    54 16:45:44
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+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
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+   2 21:30:57.6
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+  54 00:00:00.0
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+   0 00:00:00.0
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+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
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+  0 02:57:52.48
+  0 16:45:44.66
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+  0 22:30:04.18
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+  1 00:00:00.00
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+  1 16:45:44.66
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+  1 01:56:51.59
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+  2 02:57:52.48
+  2 16:45:44.66
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+ 54 00:00:00.00
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+ 54 06:49:27.11
+ 54 02:57:52.48
+ 54 16:45:44.66
+ 54 21:30:57.58
+ 54 22:30:04.18
+ 54 01:56:51.59
+ 681 00:00:00.0
+ 681 04:50:38.1
+ 681 12:31:35.2
+ 681 12:47:53.3
+ 681 01:26:00.5
+ 681 20:58:11.6
+ 681 07:36:05.2
+ 681 15:43:49.8
+ 681 04:25:09.0
+ 681 06:49:27.5
+ 681 02:57:52.0
+ 681 16:45:44.9
+ 681 21:30:57.8
+ 681 04:25:09.2
+ 681 06:49:27.1
+ 681 02:57:52.5
+ 681 16:45:44.7
+ 681 21:30:57.6
+ 681 22:30:04.2
+ 681 01:56:51.6
+  0 00:00:00.00
+ -0 04:50:38.12
+ -0 12:31:35.23
+ -0 12:47:53.35
+ -0 01:26:00.46
+ -0 20:58:11.57
+ -0 07:36:05.19
+ -0 15:43:49.83
+ -0 04:25:09.01
+ -0 06:49:27.52
+ -0 02:57:52.02
+ -0 16:45:44.87
+ -0 21:30:57.82
+ -0 04:25:09.15
+ -0 06:49:27.11
+ -0 02:57:52.48
+ -0 16:45:44.66
+ -0 21:30:57.58
+ -0 22:30:04.18
+ -0 01:56:51.59
+ -1 00:00:00.00
+ -1 04:50:38.12
+ -1 12:31:35.23
+ -1 12:47:53.35
+ -1 01:26:00.46
+ -1 20:58:11.57
+ -1 07:36:05.19
+ -1 15:43:49.83
+ -1 04:25:09.01
+ -1 06:49:27.52
+ -1 02:57:52.02
+ -1 16:45:44.87
+ -1 21:30:57.82
+ -1 04:25:09.15
+ -1 06:49:27.11
+ -1 02:57:52.48
+ -1 16:45:44.66
+ -1 21:30:57.58
+ -1 22:30:04.18
+ -1 01:56:51.59
+ -2 00:00:00.00
+ -2 04:50:38.12
+ -2 12:31:35.23
+ -2 12:47:53.35
+ -2 01:26:00.46
+ -2 20:58:11.57
+ -2 07:36:05.19
+ -2 15:43:49.83
+ -2 04:25:09.01
+ -2 06:49:27.52
+ -2 02:57:52.02
+ -2 16:45:44.87
+ -2 21:30:57.82
+ -2 04:25:09.15
+ -2 06:49:27.11
+ -2 02:57:52.48
+ -2 16:45:44.66
+ -2 21:30:57.58
+ -2 22:30:04.18
+ -2 01:56:51.59
+ -54 00:00:00.0
+ -54 04:50:38.1
+ -54 12:31:35.2
+ -54 12:47:53.3
+ -54 01:26:00.5
+ -54 20:58:11.6
+ -54 07:36:05.2
+ -54 15:43:49.8
+ -54 04:25:09.0
+ -54 06:49:27.5
+ -54 02:57:52.0
+ -54 16:45:44.9
+ -54 21:30:57.8
+ -54 04:25:09.2
+ -54 06:49:27.1
+ -54 02:57:52.5
+ -54 16:45:44.7
+ -54 21:30:57.6
+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
+  -681 04:50:38
+  -681 12:31:35
+  -681 12:47:53
+  -681 01:26:00
+  -681 20:58:11
+  -681 07:36:05
+  -681 15:43:49
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
+      0 04:50:38
+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
+      0 20:58:11
+      0 07:36:05
+      0 15:43:49
+      0 04:25:09
+      0 06:49:27
+      0 02:57:52
+      0 16:45:44
+      0 21:30:57
+      0 04:25:09
+      0 06:49:27
+      0 02:57:52
+      0 16:45:44
+      0 21:30:57
+      0 22:30:04
+      0 01:56:51
+      1 00:00:00
+      1 04:50:38
+      1 12:31:35
+      1 12:47:53
+      1 01:26:00
+      1 20:58:11
+      1 07:36:05
+      1 15:43:49
+      1 04:25:09
+      1 06:49:27
+      1 02:57:52
+      1 16:45:44
+      1 21:30:57
+      1 04:25:09
+      1 06:49:27
+      1 02:57:52
+      1 16:45:44
+      1 21:30:57
+      1 22:30:04
+      1 01:56:51
+      2 00:00:00
+      2 04:50:38
+      2 12:31:35
+      2 12:47:53
+      2 01:26:00
+      2 20:58:11
+      2 07:36:05
+      2 15:43:49
+      2 04:25:09
+      2 06:49:27
+      2 02:57:52
+      2 16:45:44
+      2 21:30:57
+      2 04:25:09
+      2 06:49:27
+      2 02:57:52
+      2 16:45:44
+      2 21:30:57
+      2 22:30:04
+      2 01:56:51
+     54 00:00:00
+     54 04:50:38
+     54 12:31:35
+     54 12:47:53
+     54 01:26:00
+     54 20:58:11
+     54 07:36:05
+     54 15:43:49
+     54 04:25:09
+     54 06:49:27
+     54 02:57:52
+     54 16:45:44
+     54 21:30:57
+     54 04:25:09
+     54 06:49:27
+     54 02:57:52
+     54 16:45:44
+     54 21:30:57
+     54 22:30:04
+     54 01:56:51
+    681 00:00:00
+    681 04:50:38
+    681 12:31:35
+    681 12:47:53
+    681 01:26:00
+    681 20:58:11
+    681 07:36:05
+    681 15:43:49
+    681 04:25:09
+    681 06:49:27
+    681 02:57:52
+    681 16:45:44
+    681 21:30:57
+    681 04:25:09
+    681 06:49:27
+    681 02:57:52
+    681 16:45:44
+    681 21:30:57
+    681 22:30:04
+    681 01:56:51
+      0 00:00:00
+     -0 04:50:38
+     -0 12:31:35
+     -0 12:47:53
+     -0 01:26:00
+     -0 20:58:11
+     -0 07:36:05
+     -0 15:43:49
+     -0 04:25:09
+     -0 06:49:27
+     -0 02:57:52
+     -0 16:45:44
+     -0 21:30:57
+     -0 04:25:09
+     -0 06:49:27
+     -0 02:57:52
+     -0 16:45:44
+     -0 21:30:57
+     -0 22:30:04
+     -0 01:56:51
+     -1 00:00:00
+     -1 04:50:38
+     -1 12:31:35
+     -1 12:47:53
+     -1 01:26:00
+     -1 20:58:11
+     -1 07:36:05
+     -1 15:43:49
+     -1 04:25:09
+     -1 06:49:27
+     -1 02:57:52
+     -1 16:45:44
+     -1 21:30:57
+     -1 04:25:09
+     -1 06:49:27
+     -1 02:57:52
+     -1 16:45:44
+     -1 21:30:57
+     -1 22:30:04
+     -1 01:56:51
+     -2 00:00:00
+     -2 04:50:38
+     -2 12:31:35
+     -2 12:47:53
+     -2 01:26:00
+     -2 20:58:11
+     -2 07:36:05
+     -2 15:43:49
+     -2 04:25:09
+     -2 06:49:27
+     -2 02:57:52
+     -2 16:45:44
+     -2 21:30:57
+     -2 04:25:09
+     -2 06:49:27
+     -2 02:57:52
+     -2 16:45:44
+     -2 21:30:57
+     -2 22:30:04
+     -2 01:56:51
+    -54 00:00:00
+    -54 04:50:38
+    -54 12:31:35
+    -54 12:47:53
+    -54 01:26:00
+    -54 20:58:11
+    -54 07:36:05
+    -54 15:43:49
+    -54 04:25:09
+    -54 06:49:27
+    -54 02:57:52
+    -54 16:45:44
+    -54 21:30:57
+    -54 04:25:09
+    -54 06:49:27
+    -54 02:57:52
+    -54 16:45:44
+    -54 21:30:57
+    -54 22:30:04
+    -54 01:56:51
+   -681 00:00:00
+   -681 04:50:38
+   -681 12:31:35
+   -681 12:47:53
+   -681 01:26:00
+   -681 20:58:11
+   -681 07:36:05
+   -681 15:43:49
+   -681 04:25:09
+   -681 06:49:27
+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 04:25:09
+   -681 06:49:27
+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 22:30:04
+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
+    0 00:00:00.0
+    0 04:50:38.1
+    0 12:31:35.2
+    0 12:47:53.3
+    0 01:26:00.5
+    0 20:58:11.6
+    0 07:36:05.2
+    0 15:43:49.8
+    0 04:25:09.0
+    0 06:49:27.5
+    0 02:57:52.0
+    0 16:45:44.9
+    0 21:30:57.8
+    0 04:25:09.2
+    0 06:49:27.1
+    0 02:57:52.5
+    0 16:45:44.7
+    0 21:30:57.6
+    0 22:30:04.2
+    0 01:56:51.6
+    1 00:00:00.0
+    1 04:50:38.1
+    1 12:31:35.2
+    1 12:47:53.3
+    1 01:26:00.5
+    1 20:58:11.6
+    1 07:36:05.2
+    1 15:43:49.8
+    1 04:25:09.0
+    1 06:49:27.5
+    1 02:57:52.0
+    1 16:45:44.9
+    1 21:30:57.8
+    1 04:25:09.2
+    1 06:49:27.1
+    1 02:57:52.5
+    1 16:45:44.7
+    1 21:30:57.6
+    1 22:30:04.2
+    1 01:56:51.6
+    2 00:00:00.0
+    2 04:50:38.1
+    2 12:31:35.2
+    2 12:47:53.3
+    2 01:26:00.5
+    2 20:58:11.6
+    2 07:36:05.2
+    2 15:43:49.8
+    2 04:25:09.0
+    2 06:49:27.5
+    2 02:57:52.0
+    2 16:45:44.9
+    2 21:30:57.8
+    2 04:25:09.2
+    2 06:49:27.1
+    2 02:57:52.5
+    2 16:45:44.7
+    2 21:30:57.6
+    2 22:30:04.2
+    2 01:56:51.6
+   54 00:00:00.0
+   54 04:50:38.1
+   54 12:31:35.2
+   54 12:47:53.3
+   54 01:26:00.5
+   54 20:58:11.6
+   54 07:36:05.2
+   54 15:43:49.8
+   54 04:25:09.0
+   54 06:49:27.5
+   54 02:57:52.0
+   54 16:45:44.9
+   54 21:30:57.8
+   54 04:25:09.2
+   54 06:49:27.1
+   54 02:57:52.5
+   54 16:45:44.7
+   54 21:30:57.6
+   54 22:30:04.2
+   54 01:56:51.6
+  681 00:00:00.0
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+  681 02:57:52.5
+  681 16:45:44.7
+  681 21:30:57.6
+  681 22:30:04.2
+  681 01:56:51.6
+    0 00:00:00.0
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+   -0 01:26:00.5
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+   -0 16:45:44.9
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+   -0 04:25:09.2
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+   -0 16:45:44.7
+   -0 21:30:57.6
+   -0 22:30:04.2
+   -0 01:56:51.6
+   -1 00:00:00.0
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+   -1 12:31:35.2
+   -1 12:47:53.3
+   -1 01:26:00.5
+   -1 20:58:11.6
+   -1 07:36:05.2
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+   -1 04:25:09.0
+   -1 06:49:27.5
+   -1 02:57:52.0
+   -1 16:45:44.9
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+   -1 16:45:44.7
+   -1 21:30:57.6
+   -1 22:30:04.2
+   -1 01:56:51.6
+   -2 00:00:00.0
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+   -2 12:31:35.2
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+   -2 15:43:49.8
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+   -2 21:30:57.8
+   -2 04:25:09.2
+   -2 06:49:27.1
+   -2 02:57:52.5
+   -2 16:45:44.7
+   -2 21:30:57.6
+   -2 22:30:04.2
+   -2 01:56:51.6
+  -54 00:00:00.0
+  -54 04:50:38.1
+  -54 12:31:35.2
+  -54 12:47:53.3
+  -54 01:26:00.5
+  -54 20:58:11.6
+  -54 07:36:05.2
+  -54 15:43:49.8
+  -54 04:25:09.0
+  -54 06:49:27.5
+  -54 02:57:52.0
+  -54 16:45:44.9
+  -54 21:30:57.8
+  -54 04:25:09.2
+  -54 06:49:27.1
+  -54 02:57:52.5
+  -54 16:45:44.7
+  -54 21:30:57.6
+  -54 22:30:04.2
+  -54 01:56:51.6
+ -681 00:00:00.0
+ -681 04:50:38.1
+ -681 12:31:35.2
+ -681 12:47:53.3
+ -681 01:26:00.5
+ -681 20:58:11.6
+ -681 07:36:05.2
+ -681 15:43:49.8
+ -681 04:25:09.0
+ -681 06:49:27.5
+ -681 02:57:52.0
+ -681 16:45:44.9
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+ -681 04:25:09.2
+ -681 06:49:27.1
+ -681 02:57:52.5
+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/dtime15.2.txt b/rust/pspp/src/format/testdata/display/dtime15.2.txt
new file mode 100644
index 0000000000..8edec6e8ce
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime15.2.txt
@@ -0,0 +1,3432 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
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+    07:36:05.190
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+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
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+    02:57:52.482
+    16:45:44.658
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+    24:00:00.000
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+    26:57:52.016
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+    28:25:09.154
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+    26:57:52.482
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+    45:30:57.582
+    46:30:04.183
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+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
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+    55:36:05.190
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+    64:45:44.865
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+    64:45:44.658
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+    00:00:00.000
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+   -01:26:00.456
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+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
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+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
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+   -22:30:04.183
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+   -64:45:44.865
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+   -64:45:44.658
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+ -1296:00:00.000
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+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
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+ ********
+ ********
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+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
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+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
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+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
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+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
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+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
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+ -2 12:31
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+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
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+ -2 06:49
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+ -2 16:45
+ -2 21:30
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+ -2 01:56
+ ********
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+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
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+   1 00:00
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+   1 01:26
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+   1 15:43
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+   1 16:45
+   1 21:30
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+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
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+   2 01:26
+   2 20:58
+   2 07:36
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+   2 21:30
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+   2 01:56
+  54 00:00
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+   0 00:00
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+  -0 20:58
+  -0 07:36
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+ -54 00:00
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+ *********
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+ *********
+ *********
+ *********
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+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
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+ 0 00:00:00
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+   -0 07:36
+   -0 15:43
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+ -681 06:49
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+ -681 16:45
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+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
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+  0 16:45:44
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+  0 22:30:04
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+  1 00:00:00
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+  1 04:25:09
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+  2 00:00:00
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+  2 16:45:44
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+  2 01:56:51
+ 54 00:00:00
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+ 54 20:58:11
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+   681 00:00
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+  0 00:00:00
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+ -0 12:31:35
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+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
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+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:47:53
+ -1 01:26:00
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+ -1 16:45:44
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+ -1 02:57:52
+ -1 16:45:44
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+ -2 07:36:05
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+ -2 04:25:09
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+   -54 00:00
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+  -681 06:49
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+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
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+  54 00:00:00
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+   -681 00:00
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
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+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
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+    2 04:25:09
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+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
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+   54 04:25:09
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+   54 01:56:51
+  681 00:00:00
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+  681 16:45:44
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+    0 00:00:00
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+   -0 01:26:00
+   -0 20:58:11
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+   -0 16:45:44
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+   -0 22:30:04
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+   -1 00:00:00
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+   -1 20:58:11
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+   -1 16:45:44
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+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
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+  -54 00:00:00
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
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+  2 12:31:35.2
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+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
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+ 54 04:25:09.0
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+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
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+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
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+ 54 01:56:51.6
+  681 00:00:00
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+  0 00:00:00.0
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+ -0 01:56:51.6
+ -1 00:00:00.0
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+ -1 01:26:00.5
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+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
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+  -54 01:26:00
+  -54 20:58:11
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+  -54 16:45:44
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
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+     1 00:00:00
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+     2 00:00:00
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+    54 00:00:00
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+    54 07:36:05
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+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+   -54 16:45:44
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   0 00:00:00.0
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+  -681 16:45:44
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
+  0 01:26:00.46
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+  0 16:45:44.66
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+  1 16:45:44.66
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+ -54 00:00:00.0
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+  -681 16:45:44
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
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+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
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+      0 01:56:51
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+      2 00:00:00
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+     54 00:00:00
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+    681 00:00:00
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+    -54 00:00:00
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+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 22:30:04
+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
+    0 00:00:00.0
+    0 04:50:38.1
+    0 12:31:35.2
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+    0 00:00:00.0
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+  -54 16:45:44.7
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+ -681 00:00:00.0
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+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
+   0 00:00:00.00
+   0 04:50:38.12
+   0 12:31:35.23
+   0 12:47:53.35
+   0 01:26:00.46
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+   0 15:43:49.83
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+   0 06:49:27.52
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+ -681 01:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/dtime15.3.txt b/rust/pspp/src/format/testdata/display/dtime15.3.txt
new file mode 100644
index 0000000000..322f2ada49
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime15.3.txt
@@ -0,0 +1,3634 @@
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+])
+AT_CHECK([cat time15.4.out], [0], [dnl
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+])
+AT_CHECK([cat time15.5.out], [0], [dnl
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
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+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
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+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
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+  -54 16:45
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+  -54 04:25
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+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
+ -681 06:49
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 12:31
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+   681 01:26
+   681 20:58
+   681 07:36
+   681 15:43
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
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+  -681 12:31
+  -681 12:47
+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
+ 681 04:50:38
+ 681 12:31:35
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
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+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
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+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
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+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
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+ -681 16:45:44
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+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
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+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
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+  681 15:43:49
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+  681 06:49:27
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+  681 16:45:44
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+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
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+ -1 01:56:51.6
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+ -2 12:31:35.2
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+ -2 01:26:00.5
+ -2 20:58:11.6
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 01:56:51
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+     1 16:45:44
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+     1 02:57:52
+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 01:26:00
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+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
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+     2 16:45:44
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+    54 00:00:00
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+    54 12:47:53
+    54 01:26:00
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+    54 16:45:44
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+    -2 16:45:44
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+   -54 00:00:00
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   1 04:25:09.2
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+   1 16:45:44.7
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+   2 02:57:52.5
+   2 16:45:44.7
+   2 21:30:57.6
+   2 22:30:04.2
+   2 01:56:51.6
+  54 00:00:00.0
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+  54 15:43:49.8
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+ 681 00:00:00.0
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+ 681 16:45:44.7
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+ 681 01:56:51.6
+   0 00:00:00.0
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+  -2 02:57:52.5
+  -2 16:45:44.7
+  -2 21:30:57.6
+  -2 22:30:04.2
+  -2 01:56:51.6
+ -54 00:00:00.0
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
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+  0 16:45:44.66
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+  0 22:30:04.18
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+  1 00:00:00.00
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+  1 01:26:00.46
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+  1 02:57:52.02
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+  1 04:25:09.15
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+  1 16:45:44.66
+  1 21:30:57.58
+  1 22:30:04.18
+  1 01:56:51.59
+  2 00:00:00.00
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+  2 02:57:52.02
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+  2 02:57:52.48
+  2 16:45:44.66
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+  2 22:30:04.18
+  2 01:56:51.59
+ 54 00:00:00.00
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+  0 00:00:00.00
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+ -1 00:00:00.00
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+ -1 16:45:44.66
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+ -2 00:00:00.00
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+ -2 01:26:00.46
+ -2 20:58:11.57
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+ -2 02:57:52.48
+ -2 16:45:44.66
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+ -2 22:30:04.18
+ -2 01:56:51.59
+ -54 00:00:00.0
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+ -54 20:58:11.6
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+ -54 04:25:09.2
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+ -54 02:57:52.5
+ -54 16:45:44.7
+ -54 21:30:57.6
+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
+      0 04:50:38
+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
+      0 20:58:11
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+      0 02:57:52
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+      0 06:49:27
+      0 02:57:52
+      0 16:45:44
+      0 21:30:57
+      0 22:30:04
+      0 01:56:51
+      1 00:00:00
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+      1 15:43:49
+      1 04:25:09
+      1 06:49:27
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+      1 16:45:44
+      1 21:30:57
+      1 04:25:09
+      1 06:49:27
+      1 02:57:52
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
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diff --git a/rust/pspp/src/format/testdata/display/dtime15.txt b/rust/pspp/src/format/testdata/display/dtime15.txt
new file mode 100644
index 0000000000..13414d5612
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime15.txt
@@ -0,0 +1,3028 @@
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
+ 00:00:00.000000
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+ 12:31:35.234530
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+ 01:26:00.456150
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+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
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+ ********
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+ *********
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
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+  0 01:26:00
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+  2 01:56:51
+ 54 00:00:00
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+ 54 01:56:51
+   681 00:00
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+   681 15:43
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+   681 02:57
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+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
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+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
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+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
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+   -54 04:25
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+   -54 21:30
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+   -54 01:56
+  -681 00:00
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+  -681 07:36
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
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+   2 16:45:44
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 04:25:09
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+  54 16:45:44
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+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
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+ 681 04:25:09
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+ 681 16:45:44
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+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
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+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
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+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
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+ -54 00:00:00
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+ -54 12:31:35
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+ -54 01:26:00
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+   -681 00:00
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+   -681 07:36
+   -681 15:43
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+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
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+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
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+    2 06:49:27
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+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
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+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
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+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
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+   54 01:56:51
+  681 00:00:00
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+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
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+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
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+   -0 12:31:35
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
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+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
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+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 12:31:35
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+  -54 01:26:00
+  -54 20:58:11
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+  -54 06:49:27
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+  -54 16:45:44
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+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
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+  681 20:58:11
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+  681 15:43:49
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+  681 06:49:27
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
+     1 04:50:38
+     1 12:31:35
+     1 12:47:53
+     1 01:26:00
+     1 20:58:11
+     1 07:36:05
+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
+     2 04:50:38
+     2 12:31:35
+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 04:25:09
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+   -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime16.1.txt b/rust/pspp/src/format/testdata/display/dtime16.1.txt
new file mode 100644
index 0000000000..50331a2c2c
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime16.1.txt
@@ -0,0 +1,4038 @@
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+])
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
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+  0 01:26
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+ 54 06:49
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+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
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+  0 00:00
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+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
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+ 54 00:00:00
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+  0 00:00:00
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+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
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+   -54 21:30
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+   -54 01:56
+  -681 00:00
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+  -681 01:26
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+  -681 07:36
+  -681 15:43
+  -681 04:25
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+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
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+   2 02:57:52
+   2 16:45:44
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+   2 04:25:09
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+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
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+ 681 16:45:44
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
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+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
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+ -54 04:25:09
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+ -54 02:57:52
+ -54 16:45:44
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+ -54 16:45:44
+ -54 21:30:57
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+ -54 01:56:51
+   -681 00:00
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+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
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+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
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+   -0 12:31:35
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
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+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
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+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
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+  -54 06:49:27
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+  -54 16:45:44
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+  -54 04:25:09
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+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
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+ -681 01:26:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
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+  681 20:58:11
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+  681 15:43:49
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+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
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+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
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+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
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+     0 04:25:09
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+     0 02:57:52
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+     0 21:30:57
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+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
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+     1 01:26:00
+     1 20:58:11
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+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
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+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
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+     1 01:56:51
+     2 00:00:00
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+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
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+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
+    54 04:50:38
+    54 12:31:35
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+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
+    54 15:43:49
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 04:25:09
+    54 06:49:27
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+    54 16:45:44
+    54 21:30:57
+    54 22:30:04
+    54 01:56:51
+   681 00:00:00
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+   681 02:57:52
+   681 16:45:44
+   681 21:30:57
+   681 22:30:04
+   681 01:56:51
+     0 00:00:00
+    -0 04:50:38
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+    -0 01:26:00
+    -0 20:58:11
+    -0 07:36:05
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+    -0 02:57:52
+    -0 16:45:44
+    -0 21:30:57
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+  -681 16:45:44
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+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
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+   0 00:00:00.0
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+ -54 00:00:00.0
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+  0 12:31:35.23
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+  0 16:45:44.66
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+  1 16:45:44.66
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+  2 00:00:00.00
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+ 54 00:00:00.00
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+ -54 00:00:00.0
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+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
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+      0 12:31:35
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+      0 01:26:00
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+      0 01:56:51
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+      2 00:00:00
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+     54 00:00:00
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+    681 00:00:00
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+      0 00:00:00
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+    -54 00:00:00
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+    -54 16:45:44
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+   -681 00:00:00
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+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 22:30:04
+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
+    0 00:00:00.0
+    0 04:50:38.1
+    0 12:31:35.2
+    0 12:47:53.3
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+    0 04:25:09.2
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+    0 02:57:52.5
+    0 16:45:44.7
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
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+     681 01:56:51
+       0 00:00:00
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+      -0 01:26:00
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+      -0 02:57:52
+      -0 16:45:44
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+      -0 22:30:04
+      -0 01:56:51
+      -1 00:00:00
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+     -54 00:00:00
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+     -54 12:31:35
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+     -54 01:26:00
+     -54 20:58:11
+     -54 07:36:05
+     -54 15:43:49
+     -54 04:25:09
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+     -54 16:45:44
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+     -54 06:49:27
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+    -681 00:00:00
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+    -681 02:57:52
+    -681 16:45:44
+    -681 21:30:57
+    -681 22:30:04
+    -681 01:56:51
+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
+     0 00:00:00.0
+     0 04:50:38.1
+     0 12:31:35.2
+     0 12:47:53.3
+     0 01:26:00.5
+     0 20:58:11.6
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+     0 15:43:49.8
+     0 04:25:09.0
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+     0 02:57:52.0
+     0 16:45:44.9
+     0 21:30:57.8
+     0 04:25:09.2
+     0 06:49:27.1
+     0 02:57:52.5
+     0 16:45:44.7
+     0 21:30:57.6
+     0 22:30:04.2
+     0 01:56:51.6
+     1 00:00:00.0
+     1 04:50:38.1
+     1 12:31:35.2
+     1 12:47:53.3
+     1 01:26:00.5
+     1 20:58:11.6
+     1 07:36:05.2
+     1 15:43:49.8
+     1 04:25:09.0
+     1 06:49:27.5
+     1 02:57:52.0
+     1 16:45:44.9
+     1 21:30:57.8
+     1 04:25:09.2
+     1 06:49:27.1
+     1 02:57:52.5
+     1 16:45:44.7
+     1 21:30:57.6
+     1 22:30:04.2
+     1 01:56:51.6
+     2 00:00:00.0
+     2 04:50:38.1
+     2 12:31:35.2
+     2 12:47:53.3
+     2 01:26:00.5
+     2 20:58:11.6
+     2 07:36:05.2
+     2 15:43:49.8
+     2 04:25:09.0
+     2 06:49:27.5
+     2 02:57:52.0
+     2 16:45:44.9
+     2 21:30:57.8
+     2 04:25:09.2
+     2 06:49:27.1
+     2 02:57:52.5
+     2 16:45:44.7
+     2 21:30:57.6
+     2 22:30:04.2
+     2 01:56:51.6
+    54 00:00:00.0
+    54 04:50:38.1
+    54 12:31:35.2
+    54 12:47:53.3
+    54 01:26:00.5
+    54 20:58:11.6
+    54 07:36:05.2
+    54 15:43:49.8
+    54 04:25:09.0
+    54 06:49:27.5
+    54 02:57:52.0
+    54 16:45:44.9
+    54 21:30:57.8
+    54 04:25:09.2
+    54 06:49:27.1
+    54 02:57:52.5
+    54 16:45:44.7
+    54 21:30:57.6
+    54 22:30:04.2
+    54 01:56:51.6
+   681 00:00:00.0
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+   681 16:45:44.7
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+   681 22:30:04.2
+   681 01:56:51.6
+     0 00:00:00.0
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+    -0 16:45:44.7
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+    -2 04:25:09.2
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+    -2 02:57:52.5
+    -2 16:45:44.7
+    -2 21:30:57.6
+    -2 22:30:04.2
+    -2 01:56:51.6
+   -54 00:00:00.0
+   -54 04:50:38.1
+   -54 12:31:35.2
+   -54 12:47:53.3
+   -54 01:26:00.5
+   -54 20:58:11.6
+   -54 07:36:05.2
+   -54 15:43:49.8
+   -54 04:25:09.0
+   -54 06:49:27.5
+   -54 02:57:52.0
+   -54 16:45:44.9
+   -54 21:30:57.8
+   -54 04:25:09.2
+   -54 06:49:27.1
+   -54 02:57:52.5
+   -54 16:45:44.7
+   -54 21:30:57.6
+   -54 22:30:04.2
+   -54 01:56:51.6
+  -681 00:00:00.0
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+  -681 16:45:44.7
+  -681 21:30:57.6
+  -681 22:30:04.2
+  -681 01:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/dtime16.2.txt b/rust/pspp/src/format/testdata/display/dtime16.2.txt
new file mode 100644
index 0000000000..2ced38b357
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime16.2.txt
@@ -0,0 +1,4240 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
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+    07:36:05.190
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+    04:25:09.154
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+    02:57:52.482
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+    21:30:57.582
+    22:30:04.183
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+    24:00:00.000
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+    25:26:00.456
+    44:58:11.567
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+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
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+    30:49:27.105
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+    25:56:51.593
+    48:00:00.000
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+    64:45:44.865
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+    50:57:52.482
+    64:45:44.658
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+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
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+ 16345:26:00.456
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+ 16346:57:52.482
+ 16360:45:44.658
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+    00:00:00.000
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+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
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+   -04:25:09.013
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
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+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
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+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
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+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
+  -54 04:50
+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
+  -54 04:25
+  -54 06:49
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+  -54 16:45
+  -54 21:30
+  -54 04:25
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+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
+ -681 04:50
+ -681 12:31
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 12:31
+   681 12:47
+   681 01:26
+   681 20:58
+   681 07:36
+   681 15:43
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
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+  -681 12:31
+  -681 12:47
+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
+ 681 04:50:38
+ 681 12:31:35
+ 681 12:47:53
+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
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+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
+   -681 04:50
+   -681 12:31
+   -681 12:47
+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 01:26:00
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+   0 00:00:00.0
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+ -54 00:00:00.0
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+  -681 00:00:00
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+      0 12:31:35
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+      0 01:26:00
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+    2 16:45:44.7
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+ -681 16:45:44.7
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+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
+   0 00:00:00.00
+   0 04:50:38.12
+   0 12:31:35.23
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+ -54 00:00:00.00
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+ -681 16:45:44.7
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+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+  0 12:31:35.235
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+ -681 01:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/dtime16.3.txt b/rust/pspp/src/format/testdata/display/dtime16.3.txt
new file mode 100644
index 0000000000..9b61bff70a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime16.3.txt
@@ -0,0 +1,4442 @@
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+])
+AT_CHECK([cat time15.4.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
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+  1 02:57:52
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+  1 02:57:52
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+  2 00:00:00
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+  2 01:26:00
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+  2 04:25:09
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+  2 21:30:57
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+  2 01:56:51
+ 54 00:00:00
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+   681 00:00
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+  0 00:00:00
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+ -0 12:31:35
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+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
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+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
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+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 16:45:44
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+ -1 04:25:09
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+ -1 02:57:52
+ -1 16:45:44
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+ -2 01:26:00
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+ -2 02:57:52
+ -2 16:45:44
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+ -2 01:56:51
+   -54 00:00
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+   -54 01:26
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+   -54 07:36
+   -54 15:43
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+  -681 00:00
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
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+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
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+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
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+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 01:26:00
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
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+  54 04:25:09
+  54 06:49:27
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+ 681 00:00:00
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+ 681 07:36:05
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+   0 00:00:00
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+  -0 01:26:00
+  -0 20:58:11
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+  -0 02:57:52
+  -0 16:45:44
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+  -0 04:25:09
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+  -0 02:57:52
+  -0 16:45:44
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+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
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+  -1 01:26:00
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+  -1 07:36:05
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+  -1 16:45:44
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+  -1 04:25:09
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+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
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+  -2 12:31:35
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+  -2 01:26:00
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+  -2 07:36:05
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+  -2 16:45:44
+  -2 21:30:57
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+ -54 00:00:00
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+   -681 00:00
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
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+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
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+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
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+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
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+    2 04:25:09
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+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
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+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
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+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
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+   54 16:45:44
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+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
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+   54 01:56:51
+  681 00:00:00
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+  681 07:36:05
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+  681 06:49:27
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
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+   -0 06:49:27
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+   -0 16:45:44
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+   -0 04:25:09
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+   -0 16:45:44
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+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
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+   -1 01:26:00
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+   -1 04:25:09
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+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
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+   -2 12:31:35
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+   -2 01:26:00
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+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
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+   -2 04:25:09
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+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 16:45:44
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+  -54 22:30:04
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  681 20:58:11
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+  681 15:43:49
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+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
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diff --git a/rust/pspp/src/format/testdata/display/dtime16.4.txt b/rust/pspp/src/format/testdata/display/dtime16.4.txt
new file mode 100644
index 0000000000..8066ce9e04
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime16.4.txt
@@ -0,0 +1,4644 @@
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+])
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
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+  0 00:00:00
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+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
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+ -0 04:25:09
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+ -0 16:45:44
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+ -0 01:56:51
+ -1 00:00:00
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+ -2 16:45:44
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+   -54 00:00
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+   -54 15:43
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+  -681 00:00
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
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+   0 02:57:52
+   0 16:45:44
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+   0 02:57:52
+   0 16:45:44
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+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 01:26:00
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+   1 15:43:49
+   1 04:25:09
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+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 01:26:00
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+   2 16:45:44
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+  54 00:00:00
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+  54 01:26:00
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+  54 07:36:05
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+  54 04:25:09
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+ 681 00:00:00
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+   0 00:00:00
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+  -0 16:45:44
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+  -0 01:56:51
+  -1 00:00:00
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+  -1 01:26:00
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+  -1 16:45:44
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+  -1 16:45:44
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+  -2 00:00:00
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+  -2 16:45:44
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+ -54 00:00:00
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+   -681 00:00
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
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+    0 04:25:09
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+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 12:47:53
+    1 01:26:00
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+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
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+    2 04:25:09
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+    2 02:57:52
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+    2 16:45:44
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+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
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+   54 01:26:00
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+   54 16:45:44
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+   54 04:25:09
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+   54 02:57:52
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+   54 01:56:51
+  681 00:00:00
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+  681 06:49:27
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 01:26:00
+   -0 20:58:11
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+   -0 06:49:27
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+   -0 04:25:09
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+   -0 16:45:44
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+   -0 22:30:04
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+   -1 00:00:00
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+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
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+   -2 12:31:35
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+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
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+   -2 04:25:09
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+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 16:45:44
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+  -54 22:30:04
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
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+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
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+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
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+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
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+])
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+ -681 02:57:52.5
+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.out], [0], [dnl
+       0 00:00:00
+       0 04:50:38
+       0 12:31:35
+       0 12:47:53
+       0 01:26:00
+       0 20:58:11
+       0 07:36:05
+       0 15:43:49
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 22:30:04
+       0 01:56:51
+       1 00:00:00
+       1 04:50:38
+       1 12:31:35
+       1 12:47:53
+       1 01:26:00
+       1 20:58:11
+       1 07:36:05
+       1 15:43:49
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 22:30:04
+       1 01:56:51
+       2 00:00:00
+       2 04:50:38
+       2 12:31:35
+       2 12:47:53
+       2 01:26:00
+       2 20:58:11
+       2 07:36:05
+       2 15:43:49
+       2 04:25:09
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+       2 02:57:52
+       2 16:45:44
+       2 21:30:57
+       2 04:25:09
+       2 06:49:27
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+       2 16:45:44
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+       2 22:30:04
+       2 01:56:51
+      54 00:00:00
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+      54 12:31:35
+      54 12:47:53
+      54 01:26:00
+      54 20:58:11
+      54 07:36:05
+      54 15:43:49
+      54 04:25:09
+      54 06:49:27
+      54 02:57:52
+      54 16:45:44
+      54 21:30:57
+      54 04:25:09
+      54 06:49:27
+      54 02:57:52
+      54 16:45:44
+      54 21:30:57
+      54 22:30:04
+      54 01:56:51
+     681 00:00:00
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+     681 12:47:53
+     681 01:26:00
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+     681 15:43:49
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+     681 16:45:44
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+     681 01:56:51
+       0 00:00:00
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+      -0 01:26:00
+      -0 20:58:11
+      -0 07:36:05
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+      -0 16:45:44
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+      -0 16:45:44
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+      -0 22:30:04
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+      -1 00:00:00
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+      -1 16:45:44
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+      -1 22:30:04
+      -1 01:56:51
+      -2 00:00:00
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+      -2 01:26:00
+      -2 20:58:11
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+      -2 02:57:52
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+      -2 04:25:09
+      -2 06:49:27
+      -2 02:57:52
+      -2 16:45:44
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+      -2 22:30:04
+      -2 01:56:51
+     -54 00:00:00
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+     -54 12:31:35
+     -54 12:47:53
+     -54 01:26:00
+     -54 20:58:11
+     -54 07:36:05
+     -54 15:43:49
+     -54 04:25:09
+     -54 06:49:27
+     -54 02:57:52
+     -54 16:45:44
+     -54 21:30:57
+     -54 04:25:09
+     -54 06:49:27
+     -54 02:57:52
+     -54 16:45:44
+     -54 21:30:57
+     -54 22:30:04
+     -54 01:56:51
+    -681 00:00:00
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+    -681 12:47:53
+    -681 01:26:00
+    -681 20:58:11
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+    -681 02:57:52
+    -681 16:45:44
+    -681 21:30:57
+    -681 22:30:04
+    -681 01:56:51
+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
+     0 00:00:00.0
+     0 04:50:38.1
+     0 12:31:35.2
+     0 12:47:53.3
+     0 01:26:00.5
+     0 20:58:11.6
+     0 07:36:05.2
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+     0 02:57:52.0
+     0 16:45:44.9
+     0 21:30:57.8
+     0 04:25:09.2
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+     0 02:57:52.5
+     0 16:45:44.7
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+     0 22:30:04.2
+     0 01:56:51.6
+     1 00:00:00.0
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+     1 12:47:53.3
+     1 01:26:00.5
+     1 20:58:11.6
+     1 07:36:05.2
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+     1 04:25:09.0
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+     1 16:45:44.9
+     1 21:30:57.8
+     1 04:25:09.2
+     1 06:49:27.1
+     1 02:57:52.5
+     1 16:45:44.7
+     1 21:30:57.6
+     1 22:30:04.2
+     1 01:56:51.6
+     2 00:00:00.0
+     2 04:50:38.1
+     2 12:31:35.2
+     2 12:47:53.3
+     2 01:26:00.5
+     2 20:58:11.6
+     2 07:36:05.2
+     2 15:43:49.8
+     2 04:25:09.0
+     2 06:49:27.5
+     2 02:57:52.0
+     2 16:45:44.9
+     2 21:30:57.8
+     2 04:25:09.2
+     2 06:49:27.1
+     2 02:57:52.5
+     2 16:45:44.7
+     2 21:30:57.6
+     2 22:30:04.2
+     2 01:56:51.6
+    54 00:00:00.0
+    54 04:50:38.1
+    54 12:31:35.2
+    54 12:47:53.3
+    54 01:26:00.5
+    54 20:58:11.6
+    54 07:36:05.2
+    54 15:43:49.8
+    54 04:25:09.0
+    54 06:49:27.5
+    54 02:57:52.0
+    54 16:45:44.9
+    54 21:30:57.8
+    54 04:25:09.2
+    54 06:49:27.1
+    54 02:57:52.5
+    54 16:45:44.7
+    54 21:30:57.6
+    54 22:30:04.2
+    54 01:56:51.6
+   681 00:00:00.0
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+   681 04:25:09.0
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+   681 02:57:52.5
+   681 16:45:44.7
+   681 21:30:57.6
+   681 22:30:04.2
+   681 01:56:51.6
+     0 00:00:00.0
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+    -0 12:47:53.3
+    -0 01:26:00.5
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+    -0 04:25:09.0
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+    -0 16:45:44.7
+    -0 21:30:57.6
+    -0 22:30:04.2
+    -0 01:56:51.6
+    -1 00:00:00.0
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+    -1 04:25:09.0
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+    -1 16:45:44.7
+    -1 21:30:57.6
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+    -2 00:00:00.0
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+    -2 04:25:09.2
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+    -2 02:57:52.5
+    -2 16:45:44.7
+    -2 21:30:57.6
+    -2 22:30:04.2
+    -2 01:56:51.6
+   -54 00:00:00.0
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+   -54 12:31:35.2
+   -54 12:47:53.3
+   -54 01:26:00.5
+   -54 20:58:11.6
+   -54 07:36:05.2
+   -54 15:43:49.8
+   -54 04:25:09.0
+   -54 06:49:27.5
+   -54 02:57:52.0
+   -54 16:45:44.9
+   -54 21:30:57.8
+   -54 04:25:09.2
+   -54 06:49:27.1
+   -54 02:57:52.5
+   -54 16:45:44.7
+   -54 21:30:57.6
+   -54 22:30:04.2
+   -54 01:56:51.6
+  -681 00:00:00.0
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+  -681 12:47:53.3
+  -681 01:26:00.5
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+  -681 16:45:44.7
+  -681 21:30:57.6
+  -681 22:30:04.2
+  -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
+    0 00:00:00.00
+    0 04:50:38.12
+    0 12:31:35.23
+    0 12:47:53.35
+    0 01:26:00.46
+    0 20:58:11.57
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+    0 15:43:49.83
+    0 04:25:09.01
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+    0 02:57:52.02
+    0 16:45:44.87
+    0 21:30:57.82
+    0 04:25:09.15
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+    0 02:57:52.48
+    0 16:45:44.66
+    0 21:30:57.58
+    0 22:30:04.18
+    0 01:56:51.59
+    1 00:00:00.00
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+    1 12:47:53.35
+    1 01:26:00.46
+    1 20:58:11.57
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+    1 04:25:09.01
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+    1 02:57:52.02
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+    1 04:25:09.15
+    1 06:49:27.11
+    1 02:57:52.48
+    1 16:45:44.66
+    1 21:30:57.58
+    1 22:30:04.18
+    1 01:56:51.59
+    2 00:00:00.00
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+    2 01:26:00.46
+    2 20:58:11.57
+    2 07:36:05.19
+    2 15:43:49.83
+    2 04:25:09.01
+    2 06:49:27.52
+    2 02:57:52.02
+    2 16:45:44.87
+    2 21:30:57.82
+    2 04:25:09.15
+    2 06:49:27.11
+    2 02:57:52.48
+    2 16:45:44.66
+    2 21:30:57.58
+    2 22:30:04.18
+    2 01:56:51.59
+   54 00:00:00.00
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+   54 12:31:35.23
+   54 12:47:53.35
+   54 01:26:00.46
+   54 20:58:11.57
+   54 07:36:05.19
+   54 15:43:49.83
+   54 04:25:09.01
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+   54 02:57:52.02
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+   54 02:57:52.48
+   54 16:45:44.66
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+   54 22:30:04.18
+   54 01:56:51.59
+  681 00:00:00.00
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+  681 16:45:44.66
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+    0 00:00:00.00
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+   -1 00:00:00.00
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+   -2 16:45:44.66
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+   -2 01:56:51.59
+  -54 00:00:00.00
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+  -54 16:45:44.66
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+ -681 00:00:00.00
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+ -681 02:57:52.48
+ -681 16:45:44.66
+ -681 21:30:57.58
+ -681 22:30:04.18
+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
+   0 00:00:00.000
+   0 04:50:38.123
+   0 12:31:35.235
+   0 12:47:53.345
+   0 01:26:00.456
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+   0 16:45:44.658
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+   0 22:30:04.183
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+   1 00:00:00.000
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+   1 16:45:44.658
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+   2 16:45:44.658
+   2 21:30:57.582
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+  54 00:00:00.000
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+  54 01:26:00.456
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+  54 15:43:49.831
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+  54 02:57:52.016
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+])
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diff --git a/rust/pspp/src/format/testdata/display/dtime16.txt b/rust/pspp/src/format/testdata/display/dtime16.txt
new file mode 100644
index 0000000000..c69fa7addb
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime16.txt
@@ -0,0 +1,3836 @@
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+])
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+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
+  -54 04:50
+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
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+  -54 16:45
+  -54 21:30
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+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 06:49
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+   -54 16:45
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+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
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+ 681 02:57:52
+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
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+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
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+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
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+    0 04:25:09
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+    0 02:57:52
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+    0 02:57:52
+    0 16:45:44
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+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
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+    1 04:25:09
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+    1 02:57:52
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+    1 01:56:51
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+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
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+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 01:26:00
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+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
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+  681 00:00:00
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+  681 01:56:51
+    0 00:00:00
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+   -1 00:00:00
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+   -1 16:45:44
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+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
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+   -2 20:58:11
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+ -681 00:00:00
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+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
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+  0 04:25:09.0
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+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
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+  1 02:57:52.0
+  1 16:45:44.9
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+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
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+  1 01:56:51.6
+  2 00:00:00.0
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+  2 16:45:44.7
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+ 54 16:45:44.9
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+ 54 01:56:51.6
+  681 00:00:00
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+ -0 16:45:44.7
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+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
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+  -54 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 01:56:51
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+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 07:36:05
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+    54 00:00:00
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+    54 01:26:00
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+    54 04:25:09
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+    54 02:57:52
+    54 16:45:44
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
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+  54 00:00:00.0
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+   0 00:00:00.0
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+  -2 01:56:51.6
+ -54 00:00:00.0
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
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+  0 16:45:44.66
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+  1 00:00:00.00
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+  1 16:45:44.66
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+ 54 00:00:00.00
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+ -54 22:30:04.18
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+ -681 00:00:00.0
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+ -681 04:25:09.2
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+ -681 02:57:52.5
+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
+  0 00:00:00.000
+  0 04:50:38.123
+  0 12:31:35.235
+  0 12:47:53.345
+  0 01:26:00.456
+  0 20:58:11.567
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+  0 02:57:52.482
+  0 16:45:44.658
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+  1 07:36:05.190
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+ 54 00:00:00.000
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+ 681 00:00:00.00
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+  0 00:00:00.000
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+ -1 00:00:00.000
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+ -1 01:26:00.456
+ -1 20:58:11.567
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+ -1 16:45:44.658
+ -1 21:30:57.582
+ -1 22:30:04.183
+ -1 01:56:51.593
+ -2 00:00:00.000
+ -2 04:50:38.123
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+ -2 12:47:53.345
+ -2 01:26:00.456
+ -2 20:58:11.567
+ -2 07:36:05.190
+ -2 15:43:49.831
+ -2 04:25:09.013
+ -2 06:49:27.524
+ -2 02:57:52.016
+ -2 16:45:44.865
+ -2 21:30:57.820
+ -2 04:25:09.154
+ -2 06:49:27.105
+ -2 02:57:52.482
+ -2 16:45:44.658
+ -2 21:30:57.582
+ -2 22:30:04.183
+ -2 01:56:51.593
+ -54 00:00:00.00
+ -54 04:50:38.12
+ -54 12:31:35.23
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+ -54 01:26:00.46
+ -54 20:58:11.57
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+ -54 15:43:49.83
+ -54 04:25:09.01
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+ -54 02:57:52.02
+ -54 16:45:44.87
+ -54 21:30:57.82
+ -54 04:25:09.15
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+ -54 02:57:52.48
+ -54 16:45:44.66
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+ -54 22:30:04.18
+ -54 01:56:51.59
+ -681 00:00:00.0
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+ -681 12:47:53.3
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+ -681 16:45:44.9
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+ -681 04:25:09.2
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+ -681 02:57:52.5
+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.out], [0], [dnl
+       0 00:00:00
+       0 04:50:38
+       0 12:31:35
+       0 12:47:53
+       0 01:26:00
+       0 20:58:11
+       0 07:36:05
+       0 15:43:49
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 22:30:04
+       0 01:56:51
+       1 00:00:00
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+       1 12:31:35
+       1 12:47:53
+       1 01:26:00
+       1 20:58:11
+       1 07:36:05
+       1 15:43:49
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 22:30:04
+       1 01:56:51
+       2 00:00:00
+       2 04:50:38
+       2 12:31:35
+       2 12:47:53
+       2 01:26:00
+       2 20:58:11
+       2 07:36:05
+       2 15:43:49
+       2 04:25:09
+       2 06:49:27
+       2 02:57:52
+       2 16:45:44
+       2 21:30:57
+       2 04:25:09
+       2 06:49:27
+       2 02:57:52
+       2 16:45:44
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+       2 01:56:51
+      54 00:00:00
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+      54 12:31:35
+      54 12:47:53
+      54 01:26:00
+      54 20:58:11
+      54 07:36:05
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+      54 04:25:09
+      54 06:49:27
+      54 02:57:52
+      54 16:45:44
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+      54 02:57:52
+      54 16:45:44
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+      54 01:56:51
+     681 00:00:00
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+       0 00:00:00
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+      -1 00:00:00
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+      -1 16:45:44
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+      -1 01:56:51
+      -2 00:00:00
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+     -54 00:00:00
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+     -54 01:26:00
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+    -681 00:00:00
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+    -681 16:45:44
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+    -681 22:30:04
+    -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime17.1.txt b/rust/pspp/src/format/testdata/display/dtime17.1.txt
new file mode 100644
index 0000000000..0f19200daa
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.1.txt
@@ -0,0 +1,5048 @@
+    00:00:00.000
+    04:50:38.123
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+    12:47:53.345
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+    04:25:09.154
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+    02:57:52.482
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+    21:30:57.582
+    22:30:04.183
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+    24:00:00.000
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+    44:58:11.567
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+    39:43:49.831
+    28:25:09.013
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+    26:57:52.016
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+    48:00:00.000
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+    52:25:09.013
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+    64:45:44.865
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+    70:30:04.183
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+  1296:00:00.000
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+ 16344:00:00.000
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+    00:00:00.000
+   -04:50:38.123
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+   -01:26:00.456
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+ -16344:00:00.00
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+ -16356:47:53.35
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
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+   16:45:44.6583
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+   01:56:51.5932
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+   25:26:00.4561
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+   25:56:51.5932
+   48:00:00.0000
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+   49:26:00.4562
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+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
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+   54:49:27.1053
+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
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+   1 16:45
+   1 21:30
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+   1 06:49
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+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
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+  54 00:00
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+ 681 00:00
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+ 681 20:58
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+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -0 02:57
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+  -0 16:45
+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
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+  -1 21:30
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+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
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+  -2 12:31
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+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
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+  -2 16:45
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+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
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+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
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+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
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+   54 01:26
+   54 20:58
+   54 07:36
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+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
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+  681 20:58
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+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
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+   -0 16:45
+   -0 21:30
+   -0 04:25
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+   -0 01:56
+   -1 00:00
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+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
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+   -1 16:45
+   -1 21:30
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+   -2 20:58
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+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
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+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
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+  1 01:26:00
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+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
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+  1 04:25:09
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+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
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+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
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+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
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+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
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+ 54 04:25:09
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+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
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+   -54 07:36
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
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+   0 15:43:49
+   0 04:25:09
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+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
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+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
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+   1 16:45:44
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+   2 00:00:00
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+   2 01:26:00
+   2 20:58:11
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+   2 04:25:09
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+   2 06:49:27
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+   2 16:45:44
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+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
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+  -0 01:26:00
+  -0 20:58:11
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+  -0 06:49:27
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+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
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+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
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+  -1 04:25:09
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
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+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
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+ -54 12:31:35
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+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 06:49:27
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+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
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+    0 16:45:44
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+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
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+    1 04:25:09
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+    1 02:57:52
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+    1 01:56:51
+    2 00:00:00
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+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
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+    2 06:49:27
+    2 02:57:52
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+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 01:26:00
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+   54 07:36:05
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+   54 04:25:09
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+   54 02:57:52
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+   54 06:49:27
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+   54 16:45:44
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+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+  681 01:26:00
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+ -681 16:45:44
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+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
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+  0 04:25:09.2
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+  0 16:45:44.7
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+  1 00:00:00.0
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+  1 07:36:05.2
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+  1 16:45:44.7
+  1 21:30:57.6
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+  1 01:56:51.6
+  2 00:00:00.0
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+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  0 00:00:00.0
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+ -1 00:00:00.0
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+ -681 16:45:44
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+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     2 00:00:00
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+    54 00:00:00
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+   -54 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
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+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+  54 00:00:00.0
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+   0 00:00:00.0
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+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
+  0 01:26:00.46
+  0 20:58:11.57
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+  0 02:57:52.02
+  0 16:45:44.87
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
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+])
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+        2 16:45:44
+        2 21:30:57
+        2 04:25:09
+        2 06:49:27
+        2 02:57:52
+        2 16:45:44
+        2 21:30:57
+        2 22:30:04
+        2 01:56:51
+       54 00:00:00
+       54 04:50:38
+       54 12:31:35
+       54 12:47:53
+       54 01:26:00
+       54 20:58:11
+       54 07:36:05
+       54 15:43:49
+       54 04:25:09
+       54 06:49:27
+       54 02:57:52
+       54 16:45:44
+       54 21:30:57
+       54 04:25:09
+       54 06:49:27
+       54 02:57:52
+       54 16:45:44
+       54 21:30:57
+       54 22:30:04
+       54 01:56:51
+      681 00:00:00
+      681 04:50:38
+      681 12:31:35
+      681 12:47:53
+      681 01:26:00
+      681 20:58:11
+      681 07:36:05
+      681 15:43:49
+      681 04:25:09
+      681 06:49:27
+      681 02:57:52
+      681 16:45:44
+      681 21:30:57
+      681 04:25:09
+      681 06:49:27
+      681 02:57:52
+      681 16:45:44
+      681 21:30:57
+      681 22:30:04
+      681 01:56:51
+        0 00:00:00
+       -0 04:50:38
+       -0 12:31:35
+       -0 12:47:53
+       -0 01:26:00
+       -0 20:58:11
+       -0 07:36:05
+       -0 15:43:49
+       -0 04:25:09
+       -0 06:49:27
+       -0 02:57:52
+       -0 16:45:44
+       -0 21:30:57
+       -0 04:25:09
+       -0 06:49:27
+       -0 02:57:52
+       -0 16:45:44
+       -0 21:30:57
+       -0 22:30:04
+       -0 01:56:51
+       -1 00:00:00
+       -1 04:50:38
+       -1 12:31:35
+       -1 12:47:53
+       -1 01:26:00
+       -1 20:58:11
+       -1 07:36:05
+       -1 15:43:49
+       -1 04:25:09
+       -1 06:49:27
+       -1 02:57:52
+       -1 16:45:44
+       -1 21:30:57
+       -1 04:25:09
+       -1 06:49:27
+       -1 02:57:52
+       -1 16:45:44
+       -1 21:30:57
+       -1 22:30:04
+       -1 01:56:51
+       -2 00:00:00
+       -2 04:50:38
+       -2 12:31:35
+       -2 12:47:53
+       -2 01:26:00
+       -2 20:58:11
+       -2 07:36:05
+       -2 15:43:49
+       -2 04:25:09
+       -2 06:49:27
+       -2 02:57:52
+       -2 16:45:44
+       -2 21:30:57
+       -2 04:25:09
+       -2 06:49:27
+       -2 02:57:52
+       -2 16:45:44
+       -2 21:30:57
+       -2 22:30:04
+       -2 01:56:51
+      -54 00:00:00
+      -54 04:50:38
+      -54 12:31:35
+      -54 12:47:53
+      -54 01:26:00
+      -54 20:58:11
+      -54 07:36:05
+      -54 15:43:49
+      -54 04:25:09
+      -54 06:49:27
+      -54 02:57:52
+      -54 16:45:44
+      -54 21:30:57
+      -54 04:25:09
+      -54 06:49:27
+      -54 02:57:52
+      -54 16:45:44
+      -54 21:30:57
+      -54 22:30:04
+      -54 01:56:51
+     -681 00:00:00
+     -681 04:50:38
+     -681 12:31:35
+     -681 12:47:53
+     -681 01:26:00
+     -681 20:58:11
+     -681 07:36:05
+     -681 15:43:49
+     -681 04:25:09
+     -681 06:49:27
+     -681 02:57:52
+     -681 16:45:44
+     -681 21:30:57
+     -681 04:25:09
+     -681 06:49:27
+     -681 02:57:52
+     -681 16:45:44
+     -681 21:30:57
+     -681 22:30:04
+     -681 01:56:51
+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
+      0 00:00:00.0
+      0 04:50:38.1
+      0 12:31:35.2
+      0 12:47:53.3
+      0 01:26:00.5
+      0 20:58:11.6
+      0 07:36:05.2
+      0 15:43:49.8
+      0 04:25:09.0
+      0 06:49:27.5
+      0 02:57:52.0
+      0 16:45:44.9
+      0 21:30:57.8
+      0 04:25:09.2
+      0 06:49:27.1
+      0 02:57:52.5
+      0 16:45:44.7
+      0 21:30:57.6
+      0 22:30:04.2
+      0 01:56:51.6
+      1 00:00:00.0
+      1 04:50:38.1
+      1 12:31:35.2
+      1 12:47:53.3
+      1 01:26:00.5
+      1 20:58:11.6
+      1 07:36:05.2
+      1 15:43:49.8
+      1 04:25:09.0
+      1 06:49:27.5
+      1 02:57:52.0
+      1 16:45:44.9
+      1 21:30:57.8
+      1 04:25:09.2
+      1 06:49:27.1
+      1 02:57:52.5
+      1 16:45:44.7
+      1 21:30:57.6
+      1 22:30:04.2
+      1 01:56:51.6
+      2 00:00:00.0
+      2 04:50:38.1
+      2 12:31:35.2
+      2 12:47:53.3
+      2 01:26:00.5
+      2 20:58:11.6
+      2 07:36:05.2
+      2 15:43:49.8
+      2 04:25:09.0
+      2 06:49:27.5
+      2 02:57:52.0
+      2 16:45:44.9
+      2 21:30:57.8
+      2 04:25:09.2
+      2 06:49:27.1
+      2 02:57:52.5
+      2 16:45:44.7
+      2 21:30:57.6
+      2 22:30:04.2
+      2 01:56:51.6
+     54 00:00:00.0
+     54 04:50:38.1
+     54 12:31:35.2
+     54 12:47:53.3
+     54 01:26:00.5
+     54 20:58:11.6
+     54 07:36:05.2
+     54 15:43:49.8
+     54 04:25:09.0
+     54 06:49:27.5
+     54 02:57:52.0
+     54 16:45:44.9
+     54 21:30:57.8
+     54 04:25:09.2
+     54 06:49:27.1
+     54 02:57:52.5
+     54 16:45:44.7
+     54 21:30:57.6
+     54 22:30:04.2
+     54 01:56:51.6
+    681 00:00:00.0
+    681 04:50:38.1
+    681 12:31:35.2
+    681 12:47:53.3
+    681 01:26:00.5
+    681 20:58:11.6
+    681 07:36:05.2
+    681 15:43:49.8
+    681 04:25:09.0
+    681 06:49:27.5
+    681 02:57:52.0
+    681 16:45:44.9
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+    681 04:25:09.2
+    681 06:49:27.1
+    681 02:57:52.5
+    681 16:45:44.7
+    681 21:30:57.6
+    681 22:30:04.2
+    681 01:56:51.6
+      0 00:00:00.0
+     -0 04:50:38.1
+     -0 12:31:35.2
+     -0 12:47:53.3
+     -0 01:26:00.5
+     -0 20:58:11.6
+     -0 07:36:05.2
+     -0 15:43:49.8
+     -0 04:25:09.0
+     -0 06:49:27.5
+     -0 02:57:52.0
+     -0 16:45:44.9
+     -0 21:30:57.8
+     -0 04:25:09.2
+     -0 06:49:27.1
+     -0 02:57:52.5
+     -0 16:45:44.7
+     -0 21:30:57.6
+     -0 22:30:04.2
+     -0 01:56:51.6
+     -1 00:00:00.0
+     -1 04:50:38.1
+     -1 12:31:35.2
+     -1 12:47:53.3
+     -1 01:26:00.5
+     -1 20:58:11.6
+     -1 07:36:05.2
+     -1 15:43:49.8
+     -1 04:25:09.0
+     -1 06:49:27.5
+     -1 02:57:52.0
+     -1 16:45:44.9
+     -1 21:30:57.8
+     -1 04:25:09.2
+     -1 06:49:27.1
+     -1 02:57:52.5
+     -1 16:45:44.7
+     -1 21:30:57.6
+     -1 22:30:04.2
+     -1 01:56:51.6
+     -2 00:00:00.0
+     -2 04:50:38.1
+     -2 12:31:35.2
+     -2 12:47:53.3
+     -2 01:26:00.5
+     -2 20:58:11.6
+     -2 07:36:05.2
+     -2 15:43:49.8
+     -2 04:25:09.0
+     -2 06:49:27.5
+     -2 02:57:52.0
+     -2 16:45:44.9
+     -2 21:30:57.8
+     -2 04:25:09.2
+     -2 06:49:27.1
+     -2 02:57:52.5
+     -2 16:45:44.7
+     -2 21:30:57.6
+     -2 22:30:04.2
+     -2 01:56:51.6
+    -54 00:00:00.0
+    -54 04:50:38.1
+    -54 12:31:35.2
+    -54 12:47:53.3
+    -54 01:26:00.5
+    -54 20:58:11.6
+    -54 07:36:05.2
+    -54 15:43:49.8
+    -54 04:25:09.0
+    -54 06:49:27.5
+    -54 02:57:52.0
+    -54 16:45:44.9
+    -54 21:30:57.8
+    -54 04:25:09.2
+    -54 06:49:27.1
+    -54 02:57:52.5
+    -54 16:45:44.7
+    -54 21:30:57.6
+    -54 22:30:04.2
+    -54 01:56:51.6
+   -681 00:00:00.0
+   -681 04:50:38.1
+   -681 12:31:35.2
+   -681 12:47:53.3
+   -681 01:26:00.5
+   -681 20:58:11.6
+   -681 07:36:05.2
+   -681 15:43:49.8
+   -681 04:25:09.0
+   -681 06:49:27.5
+   -681 02:57:52.0
+   -681 16:45:44.9
+   -681 21:30:57.8
+   -681 04:25:09.2
+   -681 06:49:27.1
+   -681 02:57:52.5
+   -681 16:45:44.7
+   -681 21:30:57.6
+   -681 22:30:04.2
+   -681 01:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/dtime17.2.txt b/rust/pspp/src/format/testdata/display/dtime17.2.txt
new file mode 100644
index 0000000000..2b6f4eb73f
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.2.txt
@@ -0,0 +1,5250 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
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+    02:57:52.016
+    16:45:44.865
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+    04:25:09.154
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+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
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+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
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+    49:26:00.456
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+    55:36:05.190
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+    52:25:09.013
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+    50:57:52.016
+    64:45:44.865
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+    52:25:09.154
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+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
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+  1300:25:09.013
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+  1298:57:52.016
+  1312:45:44.865
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+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
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+  1297:56:51.593
+ 16344:00:00.000
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+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
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+ 16351:36:05.190
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+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
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+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
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+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
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+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
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+   -25:26:00.456
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+   -49:26:00.456
+   -68:58:11.567
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+   -52:25:09.013
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+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
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+ -1297:26:00.456
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+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
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+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
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+ -16348:25:09.01
+ -16350:49:27.52
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+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
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+   15:43:49.8313
+   04:25:09.0129
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+   04:25:09.1539
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+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
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+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
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+   49:26:00.4562
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+   54:49:27.5237
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+   64:45:44.8653
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+   50:57:52.4823
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+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
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+   00:00:00.0000
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+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
+ 1 04:50:38
+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
+  681 04:50
+  681 12:31
+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
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+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
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+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
+   -2 06:49
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
+  -54 12:47
+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
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+  -54 16:45
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+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
+   -54 12:47
+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 06:49
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+   -54 16:45
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+   -54 01:56
+  -681 00:00
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
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+ 681 04:25:09
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
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+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
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+  -1 04:25:09
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+  -1 02:57:52
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 06:49
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+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
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+    0 04:25:09
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+    0 16:45:44
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+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 01:26:00
+    1 20:58:11
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+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
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+    1 02:57:52
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+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
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+    2 06:49:27
+    2 02:57:52
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+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 01:26:00
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+   54 07:36:05
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+   54 04:25:09
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+  681 00:00:00
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+    0 00:00:00
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+   -1 16:45:44
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+   -2 00:00:00
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+  -54 02:57:52
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+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
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+  0 04:25:09.0
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+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
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+  1 02:57:52.0
+  1 16:45:44.9
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+  1 04:25:09.2
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+  1 16:45:44.7
+  1 21:30:57.6
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+  1 01:56:51.6
+  2 00:00:00.0
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+  2 16:45:44.7
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+ 54 01:56:51.6
+  681 00:00:00
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+ -0 16:45:44.7
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+ -0 01:56:51.6
+ -1 00:00:00.0
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+  -54 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 01:56:51
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+     1 16:45:44
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+     1 22:30:04
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+     2 00:00:00
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+     2 07:36:05
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+    54 00:00:00
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+    54 01:26:00
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+    54 02:57:52
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
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+   0 00:00:00.0
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+  -2 01:56:51.6
+ -54 00:00:00.0
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
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+ 54 00:00:00.00
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+       -1 04:25:09
+       -1 06:49:27
+       -1 02:57:52
+       -1 16:45:44
+       -1 21:30:57
+       -1 04:25:09
+       -1 06:49:27
+       -1 02:57:52
+       -1 16:45:44
+       -1 21:30:57
+       -1 22:30:04
+       -1 01:56:51
+       -2 00:00:00
+       -2 04:50:38
+       -2 12:31:35
+       -2 12:47:53
+       -2 01:26:00
+       -2 20:58:11
+       -2 07:36:05
+       -2 15:43:49
+       -2 04:25:09
+       -2 06:49:27
+       -2 02:57:52
+       -2 16:45:44
+       -2 21:30:57
+       -2 04:25:09
+       -2 06:49:27
+       -2 02:57:52
+       -2 16:45:44
+       -2 21:30:57
+       -2 22:30:04
+       -2 01:56:51
+      -54 00:00:00
+      -54 04:50:38
+      -54 12:31:35
+      -54 12:47:53
+      -54 01:26:00
+      -54 20:58:11
+      -54 07:36:05
+      -54 15:43:49
+      -54 04:25:09
+      -54 06:49:27
+      -54 02:57:52
+      -54 16:45:44
+      -54 21:30:57
+      -54 04:25:09
+      -54 06:49:27
+      -54 02:57:52
+      -54 16:45:44
+      -54 21:30:57
+      -54 22:30:04
+      -54 01:56:51
+     -681 00:00:00
+     -681 04:50:38
+     -681 12:31:35
+     -681 12:47:53
+     -681 01:26:00
+     -681 20:58:11
+     -681 07:36:05
+     -681 15:43:49
+     -681 04:25:09
+     -681 06:49:27
+     -681 02:57:52
+     -681 16:45:44
+     -681 21:30:57
+     -681 04:25:09
+     -681 06:49:27
+     -681 02:57:52
+     -681 16:45:44
+     -681 21:30:57
+     -681 22:30:04
+     -681 01:56:51
+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
+      0 00:00:00.0
+      0 04:50:38.1
+      0 12:31:35.2
+      0 12:47:53.3
+      0 01:26:00.5
+      0 20:58:11.6
+      0 07:36:05.2
+      0 15:43:49.8
+      0 04:25:09.0
+      0 06:49:27.5
+      0 02:57:52.0
+      0 16:45:44.9
+      0 21:30:57.8
+      0 04:25:09.2
+      0 06:49:27.1
+      0 02:57:52.5
+      0 16:45:44.7
+      0 21:30:57.6
+      0 22:30:04.2
+      0 01:56:51.6
+      1 00:00:00.0
+      1 04:50:38.1
+      1 12:31:35.2
+      1 12:47:53.3
+      1 01:26:00.5
+      1 20:58:11.6
+      1 07:36:05.2
+      1 15:43:49.8
+      1 04:25:09.0
+      1 06:49:27.5
+      1 02:57:52.0
+      1 16:45:44.9
+      1 21:30:57.8
+      1 04:25:09.2
+      1 06:49:27.1
+      1 02:57:52.5
+      1 16:45:44.7
+      1 21:30:57.6
+      1 22:30:04.2
+      1 01:56:51.6
+      2 00:00:00.0
+      2 04:50:38.1
+      2 12:31:35.2
+      2 12:47:53.3
+      2 01:26:00.5
+      2 20:58:11.6
+      2 07:36:05.2
+      2 15:43:49.8
+      2 04:25:09.0
+      2 06:49:27.5
+      2 02:57:52.0
+      2 16:45:44.9
+      2 21:30:57.8
+      2 04:25:09.2
+      2 06:49:27.1
+      2 02:57:52.5
+      2 16:45:44.7
+      2 21:30:57.6
+      2 22:30:04.2
+      2 01:56:51.6
+     54 00:00:00.0
+     54 04:50:38.1
+     54 12:31:35.2
+     54 12:47:53.3
+     54 01:26:00.5
+     54 20:58:11.6
+     54 07:36:05.2
+     54 15:43:49.8
+     54 04:25:09.0
+     54 06:49:27.5
+     54 02:57:52.0
+     54 16:45:44.9
+     54 21:30:57.8
+     54 04:25:09.2
+     54 06:49:27.1
+     54 02:57:52.5
+     54 16:45:44.7
+     54 21:30:57.6
+     54 22:30:04.2
+     54 01:56:51.6
+    681 00:00:00.0
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+    681 12:31:35.2
+    681 12:47:53.3
+    681 01:26:00.5
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+    681 04:25:09.0
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+    681 02:57:52.0
+    681 16:45:44.9
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+    681 04:25:09.2
+    681 06:49:27.1
+    681 02:57:52.5
+    681 16:45:44.7
+    681 21:30:57.6
+    681 22:30:04.2
+    681 01:56:51.6
+      0 00:00:00.0
+     -0 04:50:38.1
+     -0 12:31:35.2
+     -0 12:47:53.3
+     -0 01:26:00.5
+     -0 20:58:11.6
+     -0 07:36:05.2
+     -0 15:43:49.8
+     -0 04:25:09.0
+     -0 06:49:27.5
+     -0 02:57:52.0
+     -0 16:45:44.9
+     -0 21:30:57.8
+     -0 04:25:09.2
+     -0 06:49:27.1
+     -0 02:57:52.5
+     -0 16:45:44.7
+     -0 21:30:57.6
+     -0 22:30:04.2
+     -0 01:56:51.6
+     -1 00:00:00.0
+     -1 04:50:38.1
+     -1 12:31:35.2
+     -1 12:47:53.3
+     -1 01:26:00.5
+     -1 20:58:11.6
+     -1 07:36:05.2
+     -1 15:43:49.8
+     -1 04:25:09.0
+     -1 06:49:27.5
+     -1 02:57:52.0
+     -1 16:45:44.9
+     -1 21:30:57.8
+     -1 04:25:09.2
+     -1 06:49:27.1
+     -1 02:57:52.5
+     -1 16:45:44.7
+     -1 21:30:57.6
+     -1 22:30:04.2
+     -1 01:56:51.6
+     -2 00:00:00.0
+     -2 04:50:38.1
+     -2 12:31:35.2
+     -2 12:47:53.3
+     -2 01:26:00.5
+     -2 20:58:11.6
+     -2 07:36:05.2
+     -2 15:43:49.8
+     -2 04:25:09.0
+     -2 06:49:27.5
+     -2 02:57:52.0
+     -2 16:45:44.9
+     -2 21:30:57.8
+     -2 04:25:09.2
+     -2 06:49:27.1
+     -2 02:57:52.5
+     -2 16:45:44.7
+     -2 21:30:57.6
+     -2 22:30:04.2
+     -2 01:56:51.6
+    -54 00:00:00.0
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+    -54 12:31:35.2
+    -54 12:47:53.3
+    -54 01:26:00.5
+    -54 20:58:11.6
+    -54 07:36:05.2
+    -54 15:43:49.8
+    -54 04:25:09.0
+    -54 06:49:27.5
+    -54 02:57:52.0
+    -54 16:45:44.9
+    -54 21:30:57.8
+    -54 04:25:09.2
+    -54 06:49:27.1
+    -54 02:57:52.5
+    -54 16:45:44.7
+    -54 21:30:57.6
+    -54 22:30:04.2
+    -54 01:56:51.6
+   -681 00:00:00.0
+   -681 04:50:38.1
+   -681 12:31:35.2
+   -681 12:47:53.3
+   -681 01:26:00.5
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+   -681 07:36:05.2
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+   -681 02:57:52.0
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+   -681 21:30:57.8
+   -681 04:25:09.2
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+   -681 02:57:52.5
+   -681 16:45:44.7
+   -681 21:30:57.6
+   -681 22:30:04.2
+   -681 01:56:51.6
+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
+     0 00:00:00.00
+     0 04:50:38.12
+     0 12:31:35.23
+     0 12:47:53.35
+     0 01:26:00.46
+     0 20:58:11.57
+     0 07:36:05.19
+     0 15:43:49.83
+     0 04:25:09.01
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+     0 02:57:52.02
+     0 16:45:44.87
+     0 21:30:57.82
+     0 04:25:09.15
+     0 06:49:27.11
+     0 02:57:52.48
+     0 16:45:44.66
+     0 21:30:57.58
+     0 22:30:04.18
+     0 01:56:51.59
+     1 00:00:00.00
+     1 04:50:38.12
+     1 12:31:35.23
+     1 12:47:53.35
+     1 01:26:00.46
+     1 20:58:11.57
+     1 07:36:05.19
+     1 15:43:49.83
+     1 04:25:09.01
+     1 06:49:27.52
+     1 02:57:52.02
+     1 16:45:44.87
+     1 21:30:57.82
+     1 04:25:09.15
+     1 06:49:27.11
+     1 02:57:52.48
+     1 16:45:44.66
+     1 21:30:57.58
+     1 22:30:04.18
+     1 01:56:51.59
+     2 00:00:00.00
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+     2 12:31:35.23
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+     2 01:26:00.46
+     2 20:58:11.57
+     2 07:36:05.19
+     2 15:43:49.83
+     2 04:25:09.01
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+     2 02:57:52.02
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+     2 21:30:57.82
+     2 04:25:09.15
+     2 06:49:27.11
+     2 02:57:52.48
+     2 16:45:44.66
+     2 21:30:57.58
+     2 22:30:04.18
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+    54 00:00:00.00
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+     0 00:00:00.00
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+  -681 01:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/dtime17.3.txt b/rust/pspp/src/format/testdata/display/dtime17.3.txt
new file mode 100644
index 0000000000..e4526a7a76
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.3.txt
@@ -0,0 +1,5452 @@
+    00:00:00.000
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+])
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+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
+ -1 12:31
+ -1 12:47
+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
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+ -2 12:31
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+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
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+   0 21:30
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+   0 21:30
+   0 22:30
+   0 01:56
+   1 00:00
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+   1 12:31
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+   1 01:26
+   1 20:58
+   1 07:36
+   1 15:43
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
+   2 04:50
+   2 12:31
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+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 22:30
+   2 01:56
+  54 00:00
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+  54 20:58
+  54 07:36
+  54 15:43
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 04:25
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+  54 02:57
+  54 16:45
+  54 21:30
+  54 22:30
+  54 01:56
+ 681 00:00
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+ 681 01:26
+ 681 20:58
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+ 681 21:30
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+ 681 16:45
+ 681 21:30
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+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -0 02:57
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+  -0 21:30
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+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
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+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
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+  -1 21:30
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+  -1 22:30
+  -1 01:56
+  -2 00:00
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+  -2 12:31
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+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
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+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
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+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
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+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
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+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
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+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
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+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
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+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
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+   -1 12:31
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+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
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+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
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+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
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+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
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+  -54 01:26
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+  -54 07:36
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+  -54 16:45
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+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 15:43
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 12:31
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+   681 01:26
+   681 20:58
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+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
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+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 16:45
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+   -54 04:25
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+   -54 01:56
+  -681 00:00
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+  -681 20:58
+  -681 07:36
+  -681 15:43
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
+ 681 15:43:49
+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
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+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
+   -681 04:50
+   -681 12:31
+   -681 12:47
+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
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+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 16:45:44.7
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+  1 00:00:00.0
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+  1 07:36:05.2
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+  1 16:45:44.7
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+  2 00:00:00.0
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+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
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+   0 12:31:35.2
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+   0 00:00:00.0
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+  -681 16:45:44
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
+  0 01:26:00.46
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+  0 21:30:57.82
+  0 04:25:09.15
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+  0 16:45:44.66
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+  1 16:45:44.87
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+  1 16:45:44.66
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+  2 16:45:44.66
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+ -0 16:45:44.66
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+ -1 00:00:00.00
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+ -1 12:47:53.35
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+ -54 00:00:00.0
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+  -681 02:57:52
+  -681 16:45:44
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+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
+      0 04:50:38
+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
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+      0 16:45:44
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+      0 22:30:04
+      0 01:56:51
+      1 00:00:00
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+      1 16:45:44
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+      1 16:45:44
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+      1 22:30:04
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+      2 00:00:00
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+      2 01:26:00
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+      2 07:36:05
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+      2 16:45:44
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+     54 00:00:00
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+     54 01:56:51
+    681 00:00:00
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+      0 00:00:00
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+    -54 00:00:00
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+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 22:30:04
+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
+    0 00:00:00.0
+    0 04:50:38.1
+    0 12:31:35.2
+    0 12:47:53.3
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+    2 02:57:52.5
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+    0 00:00:00.0
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+  -54 16:45:44.7
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+  -54 22:30:04.2
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+ -681 00:00:00.0
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+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
+   0 00:00:00.00
+   0 04:50:38.12
+   0 12:31:35.23
+   0 12:47:53.35
+   0 01:26:00.46
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+   0 02:57:52.48
+   0 16:45:44.66
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+   0 22:30:04.18
+   0 01:56:51.59
+   1 00:00:00.00
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+   1 12:47:53.35
+   1 01:26:00.46
+   1 20:58:11.57
+   1 07:36:05.19
+   1 15:43:49.83
+   1 04:25:09.01
+   1 06:49:27.52
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+ -681 16:45:44.66
+ -681 21:30:57.58
+ -681 22:30:04.18
+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime17.out], [0], [dnl
+        0 00:00:00
+        0 04:50:38
+        0 12:31:35
+        0 12:47:53
+        0 01:26:00
+        0 20:58:11
+        0 07:36:05
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+        0 04:25:09
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+        0 02:57:52
+        0 16:45:44
+        0 21:30:57
+        0 04:25:09
+        0 06:49:27
+        0 02:57:52
+        0 16:45:44
+        0 21:30:57
+        0 22:30:04
+        0 01:56:51
+        1 00:00:00
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+        1 12:31:35
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+        1 01:26:00
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+        1 07:36:05
+        1 15:43:49
+        1 04:25:09
+        1 06:49:27
+        1 02:57:52
+        1 16:45:44
+        1 21:30:57
+        1 04:25:09
+        1 06:49:27
+        1 02:57:52
+        1 16:45:44
+        1 21:30:57
+        1 22:30:04
+        1 01:56:51
+        2 00:00:00
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+        2 01:26:00
+        2 20:58:11
+        2 07:36:05
+        2 15:43:49
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+        2 04:25:09
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+        2 16:45:44
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+       54 00:00:00
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+       54 01:26:00
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+       54 01:56:51
+      681 00:00:00
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+     -681 00:00:00
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+     -681 02:57:52
+     -681 16:45:44
+     -681 21:30:57
+     -681 22:30:04
+     -681 01:56:51
+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+      0 04:50:38.1
+      0 12:31:35.2
+      0 12:47:53.3
+      0 01:26:00.5
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+      1 16:45:44.7
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+      1 22:30:04.2
+      1 01:56:51.6
+      2 00:00:00.0
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+      2 07:36:05.2
+      2 15:43:49.8
+      2 04:25:09.0
+      2 06:49:27.5
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+      2 16:45:44.9
+      2 21:30:57.8
+      2 04:25:09.2
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+      2 02:57:52.5
+      2 16:45:44.7
+      2 21:30:57.6
+      2 22:30:04.2
+      2 01:56:51.6
+     54 00:00:00.0
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+     54 20:58:11.6
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+     54 15:43:49.8
+     54 04:25:09.0
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+     54 21:30:57.6
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+     54 01:56:51.6
+    681 00:00:00.0
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+    681 16:45:44.7
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+    681 01:56:51.6
+      0 00:00:00.0
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+     -1 00:00:00.0
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+   -681 00:00:00.0
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+   -681 16:45:44.7
+   -681 21:30:57.6
+   -681 22:30:04.2
+   -681 01:56:51.6
+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
+     0 00:00:00.00
+     0 04:50:38.12
+     0 12:31:35.23
+     0 12:47:53.35
+     0 01:26:00.46
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+     1 16:45:44.66
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+     2 02:57:52.48
+     2 16:45:44.66
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+    54 00:00:00.00
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+    54 01:26:00.46
+    54 20:58:11.57
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+     0 00:00:00.00
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+  -681 16:45:44.66
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+  -681 22:30:04.18
+  -681 01:56:51.59
+])
+AT_CHECK([cat dtime17.3.out], [0], [dnl
+    0 00:00:00.000
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+    0 12:31:35.235
+    0 12:47:53.345
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+    2 00:00:00.000
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+    2 01:26:00.456
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diff --git a/rust/pspp/src/format/testdata/display/dtime17.4.txt b/rust/pspp/src/format/testdata/display/dtime17.4.txt
new file mode 100644
index 0000000000..4b3fb95a07
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.4.txt
@@ -0,0 +1,5654 @@
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+])
+AT_CHECK([cat time15.4.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
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+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
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+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
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+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
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+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 20:58
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+   681 15:43
+   681 04:25
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+   681 21:30
+   681 04:25
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+   681 02:57
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+   681 21:30
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
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+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+ -2 22:30:04
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+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
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+   -54 16:45
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+   -54 21:30
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+   -54 01:56
+  -681 00:00
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+  -681 01:26
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+  -681 07:36
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+  -681 04:25
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 16:45:44
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+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
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+ 681 07:36:05
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+ 681 01:56:51
+   0 00:00:00
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+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
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+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
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+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
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+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
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+  -2 06:49:27
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+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
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+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
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+ -54 04:25:09
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+ -54 01:56:51
+   -681 00:00
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+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 06:49
+   -681 02:57
+   -681 16:45
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+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
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+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
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+   54 02:57:52
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+   54 21:30:57
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+   54 01:56:51
+  681 00:00:00
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+  681 12:47:53
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+  681 20:58:11
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+  681 16:45:44
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+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 12:31:35
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
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+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
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+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 12:31:35
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+  -54 01:26:00
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+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
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+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
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+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
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+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
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+ 54 16:45:44.7
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+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  681 01:56:51
+  0 00:00:00.0
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+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
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+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
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+ -1 12:31:35.2
+ -1 12:47:53.3
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+ -1 07:36:05.2
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+ -1 04:25:09.0
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+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
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+     0 16:45:44
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+     0 16:45:44
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+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
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+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
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+     1 16:45:44
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+     1 04:25:09
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+     1 02:57:52
+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 12:31:35
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+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
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+     2 02:57:52
+     2 16:45:44
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+     2 06:49:27
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+     2 16:45:44
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+     2 22:30:04
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+    54 00:00:00
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+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
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+    54 16:45:44
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+    54 02:57:52
+    54 16:45:44
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -0 16:45:44
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+    -1 00:00:00
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+    -2 16:45:44
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+    -2 01:56:51
+   -54 00:00:00
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   1 04:25:09.2
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+   1 16:45:44.7
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+   1 01:56:51.6
+   2 00:00:00.0
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+   2 07:36:05.2
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+   2 04:25:09.0
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+   2 02:57:52.5
+   2 16:45:44.7
+   2 21:30:57.6
+   2 22:30:04.2
+   2 01:56:51.6
+  54 00:00:00.0
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+  54 20:58:11.6
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+  54 15:43:49.8
+  54 04:25:09.0
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+ 681 00:00:00.0
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+ 681 16:45:44.7
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+ 681 01:56:51.6
+   0 00:00:00.0
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+  -2 02:57:52.5
+  -2 16:45:44.7
+  -2 21:30:57.6
+  -2 22:30:04.2
+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 22:30:04.2
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
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+  0 16:45:44.66
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+  0 22:30:04.18
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+  1 00:00:00.00
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+  1 01:26:00.46
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+  1 07:36:05.19
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+  1 04:25:09.01
+  1 06:49:27.52
+  1 02:57:52.02
+  1 16:45:44.87
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+  1 04:25:09.15
+  1 06:49:27.11
+  1 02:57:52.48
+  1 16:45:44.66
+  1 21:30:57.58
+  1 22:30:04.18
+  1 01:56:51.59
+  2 00:00:00.00
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+  2 01:26:00.46
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+  2 15:43:49.83
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+  2 06:49:27.52
+  2 02:57:52.02
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+  2 21:30:57.82
+  2 04:25:09.15
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+  2 02:57:52.48
+  2 16:45:44.66
+  2 21:30:57.58
+  2 22:30:04.18
+  2 01:56:51.59
+ 54 00:00:00.00
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+ 54 06:49:27.11
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+ 54 16:45:44.66
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+ 54 01:56:51.59
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+  0 00:00:00.00
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+ -0 01:26:00.46
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+ -0 16:45:44.66
+ -0 21:30:57.58
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+ -1 00:00:00.00
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+ -1 12:47:53.35
+ -1 01:26:00.46
+ -1 20:58:11.57
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+ -1 04:25:09.15
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+ -1 16:45:44.66
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+ -1 22:30:04.18
+ -1 01:56:51.59
+ -2 00:00:00.00
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+ -2 12:47:53.35
+ -2 01:26:00.46
+ -2 20:58:11.57
+ -2 07:36:05.19
+ -2 15:43:49.83
+ -2 04:25:09.01
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+ -2 02:57:52.48
+ -2 16:45:44.66
+ -2 21:30:57.58
+ -2 22:30:04.18
+ -2 01:56:51.59
+ -54 00:00:00.0
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+ -54 12:31:35.2
+ -54 12:47:53.3
+ -54 01:26:00.5
+ -54 20:58:11.6
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+ -54 04:25:09.0
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+ -54 04:25:09.2
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+ -54 02:57:52.5
+ -54 16:45:44.7
+ -54 21:30:57.6
+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
+      0 04:50:38
+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
+      0 20:58:11
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+      0 02:57:52
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+      0 06:49:27
+      0 02:57:52
+      0 16:45:44
+      0 21:30:57
+      0 22:30:04
+      0 01:56:51
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+      1 04:25:09
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+      1 04:25:09
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+      1 02:57:52
+      1 16:45:44
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+      1 01:56:51
+      2 00:00:00
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+      2 16:45:44
+      2 21:30:57
+      2 22:30:04
+      2 01:56:51
+     54 00:00:00
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+     54 01:26:00
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+     54 07:36:05
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+     54 04:25:09
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+     54 02:57:52
+     54 16:45:44
+     54 21:30:57
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+     54 06:49:27
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+ -2 21:30:57.820
+ -2 04:25:09.154
+ -2 06:49:27.105
+ -2 02:57:52.482
+ -2 16:45:44.658
+ -2 21:30:57.582
+ -2 22:30:04.183
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+ -54 00:00:00.00
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+ -54 12:31:35.23
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+ -54 01:26:00.46
+ -54 20:58:11.57
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+ -54 15:43:49.83
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+ -54 04:25:09.15
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+ -54 02:57:52.48
+ -54 16:45:44.66
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+ -681 00:00:00.0
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+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.out], [0], [dnl
+       0 00:00:00
+       0 04:50:38
+       0 12:31:35
+       0 12:47:53
+       0 01:26:00
+       0 20:58:11
+       0 07:36:05
+       0 15:43:49
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 22:30:04
+       0 01:56:51
+       1 00:00:00
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+       1 12:31:35
+       1 12:47:53
+       1 01:26:00
+       1 20:58:11
+       1 07:36:05
+       1 15:43:49
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 22:30:04
+       1 01:56:51
+       2 00:00:00
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+       2 12:31:35
+       2 12:47:53
+       2 01:26:00
+       2 20:58:11
+       2 07:36:05
+       2 15:43:49
+       2 04:25:09
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+       2 16:45:44
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+       2 04:25:09
+       2 06:49:27
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+       2 16:45:44
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+       2 22:30:04
+       2 01:56:51
+      54 00:00:00
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+      54 01:26:00
+      54 20:58:11
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+      54 15:43:49
+      54 04:25:09
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+      54 02:57:52
+      54 16:45:44
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+      54 02:57:52
+      54 16:45:44
+      54 21:30:57
+      54 22:30:04
+      54 01:56:51
+     681 00:00:00
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+       0 00:00:00
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+      -0 01:26:00
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+      -0 16:45:44
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+      -1 00:00:00
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+      -1 22:30:04
+      -1 01:56:51
+      -2 00:00:00
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+      -2 02:57:52
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+      -2 04:25:09
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+      -2 02:57:52
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+      -2 01:56:51
+     -54 00:00:00
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+     -54 12:31:35
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+     -54 01:26:00
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+     -54 04:25:09
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+     -54 02:57:52
+     -54 16:45:44
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+     -54 04:25:09
+     -54 06:49:27
+     -54 02:57:52
+     -54 16:45:44
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+     -54 22:30:04
+     -54 01:56:51
+    -681 00:00:00
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+    -681 01:26:00
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+    -681 02:57:52
+    -681 16:45:44
+    -681 21:30:57
+    -681 22:30:04
+    -681 01:56:51
+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
+     0 00:00:00.0
+     0 04:50:38.1
+     0 12:31:35.2
+     0 12:47:53.3
+     0 01:26:00.5
+     0 20:58:11.6
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+     0 04:25:09.2
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+     0 02:57:52.5
+     0 16:45:44.7
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+     0 22:30:04.2
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+     1 00:00:00.0
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+     1 16:45:44.9
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+     1 04:25:09.2
+     1 06:49:27.1
+     1 02:57:52.5
+     1 16:45:44.7
+     1 21:30:57.6
+     1 22:30:04.2
+     1 01:56:51.6
+     2 00:00:00.0
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+     2 01:26:00.5
+     2 20:58:11.6
+     2 07:36:05.2
+     2 15:43:49.8
+     2 04:25:09.0
+     2 06:49:27.5
+     2 02:57:52.0
+     2 16:45:44.9
+     2 21:30:57.8
+     2 04:25:09.2
+     2 06:49:27.1
+     2 02:57:52.5
+     2 16:45:44.7
+     2 21:30:57.6
+     2 22:30:04.2
+     2 01:56:51.6
+    54 00:00:00.0
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+    54 12:31:35.2
+    54 12:47:53.3
+    54 01:26:00.5
+    54 20:58:11.6
+    54 07:36:05.2
+    54 15:43:49.8
+    54 04:25:09.0
+    54 06:49:27.5
+    54 02:57:52.0
+    54 16:45:44.9
+    54 21:30:57.8
+    54 04:25:09.2
+    54 06:49:27.1
+    54 02:57:52.5
+    54 16:45:44.7
+    54 21:30:57.6
+    54 22:30:04.2
+    54 01:56:51.6
+   681 00:00:00.0
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+   681 02:57:52.5
+   681 16:45:44.7
+   681 21:30:57.6
+   681 22:30:04.2
+   681 01:56:51.6
+     0 00:00:00.0
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+    -0 01:26:00.5
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+    -1 00:00:00.0
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+    -2 16:45:44.7
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+    -2 22:30:04.2
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+   -54 00:00:00.0
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+   -54 16:45:44.9
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+   -54 02:57:52.5
+   -54 16:45:44.7
+   -54 21:30:57.6
+   -54 22:30:04.2
+   -54 01:56:51.6
+  -681 00:00:00.0
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+  -681 16:45:44.7
+  -681 21:30:57.6
+  -681 22:30:04.2
+  -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
+    0 00:00:00.00
+    0 04:50:38.12
+    0 12:31:35.23
+    0 12:47:53.35
+    0 01:26:00.46
+    0 20:58:11.57
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+    0 02:57:52.02
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+    0 04:25:09.15
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+    0 02:57:52.48
+    0 16:45:44.66
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+    0 22:30:04.18
+    0 01:56:51.59
+    1 00:00:00.00
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+    1 12:47:53.35
+    1 01:26:00.46
+    1 20:58:11.57
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+    1 02:57:52.02
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+    1 04:25:09.15
+    1 06:49:27.11
+    1 02:57:52.48
+    1 16:45:44.66
+    1 21:30:57.58
+    1 22:30:04.18
+    1 01:56:51.59
+    2 00:00:00.00
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+    2 01:26:00.46
+    2 20:58:11.57
+    2 07:36:05.19
+    2 15:43:49.83
+    2 04:25:09.01
+    2 06:49:27.52
+    2 02:57:52.02
+    2 16:45:44.87
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+    2 04:25:09.15
+    2 06:49:27.11
+    2 02:57:52.48
+    2 16:45:44.66
+    2 21:30:57.58
+    2 22:30:04.18
+    2 01:56:51.59
+   54 00:00:00.00
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+   54 12:31:35.23
+   54 12:47:53.35
+   54 01:26:00.46
+   54 20:58:11.57
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+   54 15:43:49.83
+   54 04:25:09.01
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+   54 02:57:52.02
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+   54 02:57:52.48
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+   54 01:56:51.59
+  681 00:00:00.00
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+    0 00:00:00.00
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+   -2 16:45:44.66
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+   -2 01:56:51.59
+  -54 00:00:00.00
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+  -54 16:45:44.66
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+ -681 00:00:00.00
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+ -681 02:57:52.48
+ -681 16:45:44.66
+ -681 21:30:57.58
+ -681 22:30:04.18
+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
+   0 00:00:00.000
+   0 04:50:38.123
+   0 12:31:35.235
+   0 12:47:53.345
+   0 01:26:00.456
+   0 20:58:11.567
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+   0 02:57:52.482
+   0 16:45:44.658
+   0 21:30:57.582
+   0 22:30:04.183
+   0 01:56:51.593
+   1 00:00:00.000
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+   1 12:31:35.235
+   1 12:47:53.345
+   1 01:26:00.456
+   1 20:58:11.567
+   1 07:36:05.190
+   1 15:43:49.831
+   1 04:25:09.013
+   1 06:49:27.524
+   1 02:57:52.016
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+])
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+])
+AT_CHECK([cat dtime17.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.3.out], [0], [dnl
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+])
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diff --git a/rust/pspp/src/format/testdata/display/dtime17.5.txt b/rust/pspp/src/format/testdata/display/dtime17.5.txt
new file mode 100644
index 0000000000..d3d7c2230f
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.5.txt
@@ -0,0 +1,5856 @@
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
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+ ********
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+  0 00:00
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
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+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
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+  0 12:31:35
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+ 54 00:00:00
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+  0 00:00:00
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+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
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+ -2 04:25:09
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+ -2 21:30:57
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+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 01:56
+  -681 00:00
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+  -681 01:26
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+  -681 07:36
+  -681 15:43
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
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+   2 16:45:44
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
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+  54 16:45:44
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+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
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+ 681 04:25:09
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
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+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
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+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
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+ -54 07:36:05
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+ -54 04:25:09
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+ -54 16:45:44
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+ -54 01:56:51
+   -681 00:00
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+   -681 07:36
+   -681 15:43
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+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
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+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
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+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
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+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
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+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
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+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
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+  -54 06:49:27
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+  -54 16:45:44
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+  -54 04:25:09
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+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
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+  681 20:58:11
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+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+  0 00:00:00.0
+ -0 04:50:38.1
+ -0 12:31:35.2
+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
+ -2 04:50:38.1
+ -2 12:31:35.2
+ -2 12:47:53.3
+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
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+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
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+     1 12:31:35
+     1 12:47:53
+     1 01:26:00
+     1 20:58:11
+     1 07:36:05
+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
+     2 04:50:38
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+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
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+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
+    54 04:50:38
+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
+    54 15:43:49
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 22:30:04
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+   681 00:00:00
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.4.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+     0 12:31:35.23
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diff --git a/rust/pspp/src/format/testdata/display/dtime17.txt b/rust/pspp/src/format/testdata/display/dtime17.txt
new file mode 100644
index 0000000000..00ec27b001
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime17.txt
@@ -0,0 +1,4846 @@
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+])
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
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+  -54 01:56
+ -681 00:00
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+ -681 15:43
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
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+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
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+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
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+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
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+ 54 04:25:09
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+ 54 04:25:09
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+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
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+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 15:43:49
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+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
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+ -2 04:25:09
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+ -2 04:25:09
+ -2 06:49:27
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+ -2 16:45:44
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+ -2 22:30:04
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+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 21:30
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+   -54 01:56
+  -681 00:00
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+  -681 01:26
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+  -681 07:36
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
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+   1 12:31:35
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
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+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
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+   2 01:26:00
+   2 20:58:11
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+   2 16:45:44
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+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
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+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
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+  54 04:25:09
+  54 06:49:27
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+  54 16:45:44
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+  54 01:56:51
+ 681 00:00:00
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+   0 00:00:00
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+  -0 01:26:00
+  -0 20:58:11
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+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
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+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
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+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
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+  -1 01:26:00
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+  -1 16:45:44
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+  -1 04:25:09
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+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
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+  -2 12:31:35
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+  -2 01:26:00
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+  -2 07:36:05
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+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
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+ -54 12:31:35
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+ -54 01:26:00
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+ -54 04:25:09
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+ -54 01:56:51
+   -681 00:00
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+   -681 15:43
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+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
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+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
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+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
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+    2 02:57:52
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+    2 16:45:44
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+    2 22:30:04
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+   54 00:00:00
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+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
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+   54 04:25:09
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+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
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+   54 02:57:52
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+   54 21:30:57
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+   54 01:56:51
+  681 00:00:00
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+  681 06:49:27
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 20:58:11
+   -0 07:36:05
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+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
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+   -0 04:25:09
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+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
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+   -1 06:49:27
+   -1 02:57:52
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+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
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+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
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+  -54 01:26:00
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+  -54 07:36:05
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+  -54 16:45:44
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+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
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+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
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+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
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+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
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+ 54 15:43:49.8
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+ 54 06:49:27.5
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+ 54 21:30:57.8
+ 54 04:25:09.2
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+ 54 16:45:44.7
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+ 54 01:56:51.6
+  681 00:00:00
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+  681 01:56:51
+  0 00:00:00.0
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+ -0 15:43:49.8
+ -0 04:25:09.0
+ -0 06:49:27.5
+ -0 02:57:52.0
+ -0 16:45:44.9
+ -0 21:30:57.8
+ -0 04:25:09.2
+ -0 06:49:27.1
+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
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+ -1 20:58:11.6
+ -1 07:36:05.2
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+ -1 04:25:09.0
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+ -1 16:45:44.9
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+ -1 04:25:09.2
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+ -1 16:45:44.7
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+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
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+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
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+  -54 00:00:00
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+  -54 12:31:35
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
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+     0 02:57:52
+     0 16:45:44
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+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
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+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
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+     1 16:45:44
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+     1 04:25:09
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+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 12:31:35
+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
+     2 21:30:57
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+     2 06:49:27
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+     2 16:45:44
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+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
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+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
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+    54 16:45:44
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+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
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+    54 01:56:51
+   681 00:00:00
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+   681 01:56:51
+     0 00:00:00
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+    -1 00:00:00
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+    -2 04:25:09
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+    -2 16:45:44
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+    -2 01:56:51
+   -54 00:00:00
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+   -54 01:26:00
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+   -54 16:45:44
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
+   0 01:26:00.5
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+   1 04:25:09.2
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+   1 16:45:44.7
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+   1 01:56:51.6
+   2 00:00:00.0
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+   2 01:26:00.5
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+   2 07:36:05.2
+   2 15:43:49.8
+   2 04:25:09.0
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+   2 06:49:27.1
+   2 02:57:52.5
+   2 16:45:44.7
+   2 21:30:57.6
+   2 22:30:04.2
+   2 01:56:51.6
+  54 00:00:00.0
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+  54 12:31:35.2
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+  54 20:58:11.6
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+  54 15:43:49.8
+  54 04:25:09.0
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+  54 02:57:52.0
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+  54 02:57:52.5
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+ 681 00:00:00.0
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+ 681 16:45:44.7
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+ 681 01:56:51.6
+   0 00:00:00.0
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+  -0 20:58:11.6
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+  -1 00:00:00.0
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+  -2 02:57:52.5
+  -2 16:45:44.7
+  -2 21:30:57.6
+  -2 22:30:04.2
+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 20:58:11.6
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
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+  0 16:45:44.66
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+  0 22:30:04.18
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+  1 00:00:00.00
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+  1 01:26:00.46
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+  1 07:36:05.19
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+  1 04:25:09.01
+  1 06:49:27.52
+  1 02:57:52.02
+  1 16:45:44.87
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+  1 04:25:09.15
+  1 06:49:27.11
+  1 02:57:52.48
+  1 16:45:44.66
+  1 21:30:57.58
+  1 22:30:04.18
+  1 01:56:51.59
+  2 00:00:00.00
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+  2 01:26:00.46
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+  2 15:43:49.83
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+  2 06:49:27.52
+  2 02:57:52.02
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+  2 21:30:57.82
+  2 04:25:09.15
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+  2 02:57:52.48
+  2 16:45:44.66
+  2 21:30:57.58
+  2 22:30:04.18
+  2 01:56:51.59
+ 54 00:00:00.00
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+ 54 01:26:00.46
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+ 54 06:49:27.11
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+ 54 16:45:44.66
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+ 54 01:56:51.59
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+  0 00:00:00.00
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+ -0 16:45:44.66
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+ -1 00:00:00.00
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+ -1 12:47:53.35
+ -1 01:26:00.46
+ -1 20:58:11.57
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+ -1 16:45:44.66
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+ -1 01:56:51.59
+ -2 00:00:00.00
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+ -2 12:47:53.35
+ -2 01:26:00.46
+ -2 20:58:11.57
+ -2 07:36:05.19
+ -2 15:43:49.83
+ -2 04:25:09.01
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+ -2 02:57:52.48
+ -2 16:45:44.66
+ -2 21:30:57.58
+ -2 22:30:04.18
+ -2 01:56:51.59
+ -54 00:00:00.0
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+ -54 01:26:00.5
+ -54 20:58:11.6
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+ -54 04:25:09.2
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
+      0 04:50:38
+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
+      0 20:58:11
+      0 07:36:05
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+      0 04:25:09
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+      0 02:57:52
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+      0 06:49:27
+      0 02:57:52
+      0 16:45:44
+      0 21:30:57
+      0 22:30:04
+      0 01:56:51
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+      1 02:57:52
+      1 16:45:44
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+      1 01:56:51
+      2 00:00:00
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+      2 16:45:44
+      2 21:30:57
+      2 22:30:04
+      2 01:56:51
+     54 00:00:00
+     54 04:50:38
+     54 12:31:35
+     54 12:47:53
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
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+ -2 20:58:11.567
+ -2 07:36:05.190
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+ -2 21:30:57.820
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+ -2 06:49:27.105
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+ -2 16:45:44.658
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+ -54 00:00:00.00
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+ -54 20:58:11.57
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+ -681 00:00:00.0
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+ -681 16:45:44.7
+ -681 21:30:57.6
+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.out], [0], [dnl
+       0 00:00:00
+       0 04:50:38
+       0 12:31:35
+       0 12:47:53
+       0 01:26:00
+       0 20:58:11
+       0 07:36:05
+       0 15:43:49
+       0 04:25:09
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+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 04:25:09
+       0 06:49:27
+       0 02:57:52
+       0 16:45:44
+       0 21:30:57
+       0 22:30:04
+       0 01:56:51
+       1 00:00:00
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+       1 12:31:35
+       1 12:47:53
+       1 01:26:00
+       1 20:58:11
+       1 07:36:05
+       1 15:43:49
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 04:25:09
+       1 06:49:27
+       1 02:57:52
+       1 16:45:44
+       1 21:30:57
+       1 22:30:04
+       1 01:56:51
+       2 00:00:00
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+       2 01:26:00
+       2 20:58:11
+       2 07:36:05
+       2 15:43:49
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+       2 16:45:44
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+       2 04:25:09
+       2 06:49:27
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+       2 16:45:44
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+      54 01:26:00
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+      54 16:45:44
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+      54 22:30:04
+      54 01:56:51
+     681 00:00:00
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+       0 00:00:00
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+      -2 04:25:09
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+      -2 01:56:51
+     -54 00:00:00
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+     -54 01:26:00
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+     -54 16:45:44
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+     -54 04:25:09
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+     -54 16:45:44
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+     -54 22:30:04
+     -54 01:56:51
+    -681 00:00:00
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+    -681 02:57:52
+    -681 16:45:44
+    -681 21:30:57
+    -681 22:30:04
+    -681 01:56:51
+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
+     0 00:00:00.0
+     0 04:50:38.1
+     0 12:31:35.2
+     0 12:47:53.3
+     0 01:26:00.5
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+     1 16:45:44.7
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+     2 00:00:00.0
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+     2 01:26:00.5
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+     2 07:36:05.2
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+     2 04:25:09.0
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+     2 04:25:09.2
+     2 06:49:27.1
+     2 02:57:52.5
+     2 16:45:44.7
+     2 21:30:57.6
+     2 22:30:04.2
+     2 01:56:51.6
+    54 00:00:00.0
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+    54 12:31:35.2
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+    54 20:58:11.6
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+    54 15:43:49.8
+    54 04:25:09.0
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+    54 02:57:52.0
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+    54 02:57:52.5
+    54 16:45:44.7
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+    54 01:56:51.6
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+   681 01:56:51.6
+     0 00:00:00.0
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+   -54 16:45:44.7
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+  -681 16:45:44.7
+  -681 21:30:57.6
+  -681 22:30:04.2
+  -681 01:56:51.6
+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
+    0 00:00:00.00
+    0 04:50:38.12
+    0 12:31:35.23
+    0 12:47:53.35
+    0 01:26:00.46
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+    0 16:45:44.66
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+    1 00:00:00.00
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+    1 02:57:52.48
+    1 16:45:44.66
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+    1 01:56:51.59
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+    2 01:26:00.46
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+    2 02:57:52.48
+    2 16:45:44.66
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+   54 00:00:00.00
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+   54 20:58:11.57
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+    0 00:00:00.00
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+   -2 01:56:51.59
+  -54 00:00:00.00
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+ -681 00:00:00.00
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+ -681 02:57:52.48
+ -681 16:45:44.66
+ -681 21:30:57.58
+ -681 22:30:04.18
+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
+   0 00:00:00.000
+   0 04:50:38.123
+   0 12:31:35.235
+   0 12:47:53.345
+   0 01:26:00.456
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+   0 02:57:52.482
+   0 16:45:44.658
+   0 21:30:57.582
+   0 22:30:04.183
+   0 01:56:51.593
+   1 00:00:00.000
+   1 04:50:38.123
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+ -54 00:00:00.000
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+ -681 16:45:44.66
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+ -681 22:30:04.18
+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime16.4.out], [0], [dnl
+  0 00:00:00.0000
+  0 04:50:38.1230
+  0 12:31:35.2345
+  0 12:47:53.3451
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+  0 06:49:27.1053
+  0 02:57:52.4823
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+  0 21:30:57.5822
+  0 22:30:04.1835
+  0 01:56:51.5932
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+  1 01:26:00.4561
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+  1 04:25:09.1540
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+  1 01:56:51.5932
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+ 54 00:00:00.0000
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+ -681 16:45:44.66
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+ -681 01:56:51.59
+])
+AT_CHECK([cat dtime17.out], [0], [dnl
+        0 00:00:00
+        0 04:50:38
+        0 12:31:35
+        0 12:47:53
+        0 01:26:00
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+     -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime18.1.txt b/rust/pspp/src/format/testdata/display/dtime18.1.txt
new file mode 100644
index 0000000000..e8fa83d2aa
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.1.txt
@@ -0,0 +1,6260 @@
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+    00:00:00.000
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+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
+  0 12:47
+  0 01:26
+  0 20:58
+  0 07:36
+  0 15:43
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 22:30
+  0 01:56
+  1 00:00
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+  1 12:31
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+  1 01:26
+  1 20:58
+  1 07:36
+  1 15:43
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 22:30
+  1 01:56
+  2 00:00
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+  2 12:31
+  2 12:47
+  2 01:26
+  2 20:58
+  2 07:36
+  2 15:43
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
+ -1 12:31
+ -1 12:47
+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
+ -2 04:50
+ -2 12:31
+ -2 12:47
+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
+ ********
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+ ********
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+ ********
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+ ********
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
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+   0 21:30
+   0 22:30
+   0 01:56
+   1 00:00
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+   1 01:26
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+   1 15:43
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+   1 06:49
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+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
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+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
+   2 06:49
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+   2 16:45
+   2 21:30
+   2 04:25
+   2 06:49
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+   2 16:45
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+   2 22:30
+   2 01:56
+  54 00:00
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+  54 21:30
+  54 22:30
+  54 01:56
+ 681 00:00
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+ 681 16:45
+ 681 21:30
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+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -0 01:56
+  -1 00:00
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+  -1 01:26
+  -1 20:58
+  -1 07:36
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+  -2 15:43
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+  -2 22:30
+  -2 01:56
+ -54 00:00
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+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
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+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
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+ 0 16:45:44
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+ 1 02:57:52
+ 1 16:45:44
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+ 2 01:26:00
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+ 2 02:57:52
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+   54 00:00
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+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
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+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
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+   -1 00:00
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+   -1 20:58
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+   -1 15:43
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+   -1 21:30
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+   -1 01:56
+   -2 00:00
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+   -2 15:43
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+   -2 22:30
+   -2 01:56
+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
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+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
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+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
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+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
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+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
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+ 54 16:45:44
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+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
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+   -54 16:45
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+   -54 04:25
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+   -54 01:56
+  -681 00:00
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+  -681 07:36
+  -681 15:43
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+  -681 21:30
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
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+   0 04:25:09
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+   0 02:57:52
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+   1 00:00:00
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+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
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+   1 02:57:52
+   1 16:45:44
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+   1 04:25:09
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+   1 02:57:52
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+   1 01:56:51
+   2 00:00:00
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+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
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+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
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+  54 16:45:44
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+ 681 00:00:00
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+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
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+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
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+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
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+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
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+  -1 01:26:00
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+  -1 07:36:05
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+  -1 16:45:44
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+  -1 04:25:09
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+  -1 16:45:44
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+  -2 16:45:44
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+ -54 01:56:51
+   -681 00:00
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
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+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
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+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
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+    2 16:45:44
+    2 21:30:57
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+    2 06:49:27
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+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
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+   54 16:45:44
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+   54 01:56:51
+  681 00:00:00
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+  681 16:45:44
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
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+   -0 16:45:44
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+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
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+   -1 02:57:52
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+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
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+   -2 04:25:09
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+   -2 16:45:44
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+   -2 04:25:09
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+   -2 22:30:04
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+  -54 00:00:00
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+  -54 12:31:35
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+  -54 01:26:00
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+  -54 16:45:44
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
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+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  681 16:45:44
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+  681 01:56:51
+  0 00:00:00.0
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+ -0 12:47:53.3
+ -0 01:26:00.5
+ -0 20:58:11.6
+ -0 07:36:05.2
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+ -0 04:25:09.0
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+ -0 02:57:52.0
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+ -0 04:25:09.2
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+ -0 02:57:52.5
+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
+ -1 04:50:38.1
+ -1 12:31:35.2
+ -1 12:47:53.3
+ -1 01:26:00.5
+ -1 20:58:11.6
+ -1 07:36:05.2
+ -1 15:43:49.8
+ -1 04:25:09.0
+ -1 06:49:27.5
+ -1 02:57:52.0
+ -1 16:45:44.9
+ -1 21:30:57.8
+ -1 04:25:09.2
+ -1 06:49:27.1
+ -1 02:57:52.5
+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
+ -2 00:00:00.0
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+ -2 12:31:35.2
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+ -2 01:26:00.5
+ -2 20:58:11.6
+ -2 07:36:05.2
+ -2 15:43:49.8
+ -2 04:25:09.0
+ -2 06:49:27.5
+ -2 02:57:52.0
+ -2 16:45:44.9
+ -2 21:30:57.8
+ -2 04:25:09.2
+ -2 06:49:27.1
+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
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+  -54 12:31:35
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+  -54 01:26:00
+  -54 20:58:11
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+  -54 04:25:09
+  -54 06:49:27
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+  -54 16:45:44
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+  -54 16:45:44
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+  -54 01:56:51
+ -681 00:00:00
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+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
+     0 20:58:11
+     0 07:36:05
+     0 15:43:49
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 04:25:09
+     0 06:49:27
+     0 02:57:52
+     0 16:45:44
+     0 21:30:57
+     0 22:30:04
+     0 01:56:51
+     1 00:00:00
+     1 04:50:38
+     1 12:31:35
+     1 12:47:53
+     1 01:26:00
+     1 20:58:11
+     1 07:36:05
+     1 15:43:49
+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
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+     1 04:25:09
+     1 06:49:27
+     1 02:57:52
+     1 16:45:44
+     1 21:30:57
+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
+     2 04:50:38
+     2 12:31:35
+     2 12:47:53
+     2 01:26:00
+     2 20:58:11
+     2 07:36:05
+     2 15:43:49
+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
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+     2 04:25:09
+     2 06:49:27
+     2 02:57:52
+     2 16:45:44
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+     2 22:30:04
+     2 01:56:51
+    54 00:00:00
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+    54 12:31:35
+    54 12:47:53
+    54 01:26:00
+    54 20:58:11
+    54 07:36:05
+    54 15:43:49
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
+    54 21:30:57
+    54 22:30:04
+    54 01:56:51
+   681 00:00:00
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+   681 16:45:44
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+   681 06:49:27
+   681 02:57:52
+   681 16:45:44
+   681 21:30:57
+   681 22:30:04
+   681 01:56:51
+     0 00:00:00
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+    -0 01:26:00
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+    -0 16:45:44
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+    -0 06:49:27
+    -0 02:57:52
+    -0 16:45:44
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+    -0 22:30:04
+    -0 01:56:51
+    -1 00:00:00
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+    -1 20:58:11
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+    -1 02:57:52
+    -1 16:45:44
+    -1 21:30:57
+    -1 22:30:04
+    -1 01:56:51
+    -2 00:00:00
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+    -2 12:47:53
+    -2 01:26:00
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+    -2 07:36:05
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+    -2 04:25:09
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+    -2 02:57:52
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+    -2 22:30:04
+    -2 01:56:51
+   -54 00:00:00
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+   -54 12:31:35
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+   -54 01:26:00
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+   -54 07:36:05
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+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
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+   -54 04:25:09
+   -54 06:49:27
+   -54 02:57:52
+   -54 16:45:44
+   -54 21:30:57
+   -54 22:30:04
+   -54 01:56:51
+  -681 00:00:00
+  -681 04:50:38
+  -681 12:31:35
+  -681 12:47:53
+  -681 01:26:00
+  -681 20:58:11
+  -681 07:36:05
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+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 04:25:09
+  -681 06:49:27
+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
+   0 01:26:00.5
+   0 20:58:11.6
+   0 07:36:05.2
+   0 15:43:49.8
+   0 04:25:09.0
+   0 06:49:27.5
+   0 02:57:52.0
+   0 16:45:44.9
+   0 21:30:57.8
+   0 04:25:09.2
+   0 06:49:27.1
+   0 02:57:52.5
+   0 16:45:44.7
+   0 21:30:57.6
+   0 22:30:04.2
+   0 01:56:51.6
+   1 00:00:00.0
+   1 04:50:38.1
+   1 12:31:35.2
+   1 12:47:53.3
+   1 01:26:00.5
+   1 20:58:11.6
+   1 07:36:05.2
+   1 15:43:49.8
+   1 04:25:09.0
+   1 06:49:27.5
+   1 02:57:52.0
+   1 16:45:44.9
+   1 21:30:57.8
+   1 04:25:09.2
+   1 06:49:27.1
+   1 02:57:52.5
+   1 16:45:44.7
+   1 21:30:57.6
+   1 22:30:04.2
+   1 01:56:51.6
+   2 00:00:00.0
+   2 04:50:38.1
+   2 12:31:35.2
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+   2 01:26:00.5
+   2 20:58:11.6
+   2 07:36:05.2
+   2 15:43:49.8
+   2 04:25:09.0
+   2 06:49:27.5
+   2 02:57:52.0
+   2 16:45:44.9
+   2 21:30:57.8
+   2 04:25:09.2
+   2 06:49:27.1
+   2 02:57:52.5
+   2 16:45:44.7
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat dtime17.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+ -681 16:45:44.658
+ -681 21:30:57.582
+ -681 22:30:04.183
+ -681 01:56:51.593
+])
+AT_CHECK([cat dtime18.out], [0], [dnl
+         0 00:00:00
+         0 04:50:38
+         0 12:31:35
+         0 12:47:53
+         0 01:26:00
+         0 20:58:11
+         0 07:36:05
+         0 15:43:49
+         0 04:25:09
+         0 06:49:27
+         0 02:57:52
+         0 16:45:44
+         0 21:30:57
+         0 04:25:09
+         0 06:49:27
+         0 02:57:52
+         0 16:45:44
+         0 21:30:57
+         0 22:30:04
+         0 01:56:51
+         1 00:00:00
+         1 04:50:38
+         1 12:31:35
+         1 12:47:53
+         1 01:26:00
+         1 20:58:11
+         1 07:36:05
+         1 15:43:49
+         1 04:25:09
+         1 06:49:27
+         1 02:57:52
+         1 16:45:44
+         1 21:30:57
+         1 04:25:09
+         1 06:49:27
+         1 02:57:52
+         1 16:45:44
+         1 21:30:57
+         1 22:30:04
+         1 01:56:51
+         2 00:00:00
+         2 04:50:38
+         2 12:31:35
+         2 12:47:53
+         2 01:26:00
+         2 20:58:11
+         2 07:36:05
+         2 15:43:49
+         2 04:25:09
+         2 06:49:27
+         2 02:57:52
+         2 16:45:44
+         2 21:30:57
+         2 04:25:09
+         2 06:49:27
+         2 02:57:52
+         2 16:45:44
+         2 21:30:57
+         2 22:30:04
+         2 01:56:51
+        54 00:00:00
+        54 04:50:38
+        54 12:31:35
+        54 12:47:53
+        54 01:26:00
+        54 20:58:11
+        54 07:36:05
+        54 15:43:49
+        54 04:25:09
+        54 06:49:27
+        54 02:57:52
+        54 16:45:44
+        54 21:30:57
+        54 04:25:09
+        54 06:49:27
+        54 02:57:52
+        54 16:45:44
+        54 21:30:57
+        54 22:30:04
+        54 01:56:51
+       681 00:00:00
+       681 04:50:38
+       681 12:31:35
+       681 12:47:53
+       681 01:26:00
+       681 20:58:11
+       681 07:36:05
+       681 15:43:49
+       681 04:25:09
+       681 06:49:27
+       681 02:57:52
+       681 16:45:44
+       681 21:30:57
+       681 04:25:09
+       681 06:49:27
+       681 02:57:52
+       681 16:45:44
+       681 21:30:57
+       681 22:30:04
+       681 01:56:51
+         0 00:00:00
+        -0 04:50:38
+        -0 12:31:35
+        -0 12:47:53
+        -0 01:26:00
+        -0 20:58:11
+        -0 07:36:05
+        -0 15:43:49
+        -0 04:25:09
+        -0 06:49:27
+        -0 02:57:52
+        -0 16:45:44
+        -0 21:30:57
+        -0 04:25:09
+        -0 06:49:27
+        -0 02:57:52
+        -0 16:45:44
+        -0 21:30:57
+        -0 22:30:04
+        -0 01:56:51
+        -1 00:00:00
+        -1 04:50:38
+        -1 12:31:35
+        -1 12:47:53
+        -1 01:26:00
+        -1 20:58:11
+        -1 07:36:05
+        -1 15:43:49
+        -1 04:25:09
+        -1 06:49:27
+        -1 02:57:52
+        -1 16:45:44
+        -1 21:30:57
+        -1 04:25:09
+        -1 06:49:27
+        -1 02:57:52
+        -1 16:45:44
+        -1 21:30:57
+        -1 22:30:04
+        -1 01:56:51
+        -2 00:00:00
+        -2 04:50:38
+        -2 12:31:35
+        -2 12:47:53
+        -2 01:26:00
+        -2 20:58:11
+        -2 07:36:05
+        -2 15:43:49
+        -2 04:25:09
+        -2 06:49:27
+        -2 02:57:52
+        -2 16:45:44
+        -2 21:30:57
+        -2 04:25:09
+        -2 06:49:27
+        -2 02:57:52
+        -2 16:45:44
+        -2 21:30:57
+        -2 22:30:04
+        -2 01:56:51
+       -54 00:00:00
+       -54 04:50:38
+       -54 12:31:35
+       -54 12:47:53
+       -54 01:26:00
+       -54 20:58:11
+       -54 07:36:05
+       -54 15:43:49
+       -54 04:25:09
+       -54 06:49:27
+       -54 02:57:52
+       -54 16:45:44
+       -54 21:30:57
+       -54 04:25:09
+       -54 06:49:27
+       -54 02:57:52
+       -54 16:45:44
+       -54 21:30:57
+       -54 22:30:04
+       -54 01:56:51
+      -681 00:00:00
+      -681 04:50:38
+      -681 12:31:35
+      -681 12:47:53
+      -681 01:26:00
+      -681 20:58:11
+      -681 07:36:05
+      -681 15:43:49
+      -681 04:25:09
+      -681 06:49:27
+      -681 02:57:52
+      -681 16:45:44
+      -681 21:30:57
+      -681 04:25:09
+      -681 06:49:27
+      -681 02:57:52
+      -681 16:45:44
+      -681 21:30:57
+      -681 22:30:04
+      -681 01:56:51
+])
+AT_CHECK([cat dtime18.1.out], [0], [dnl
+       0 00:00:00.0
+       0 04:50:38.1
+       0 12:31:35.2
+       0 12:47:53.3
+       0 01:26:00.5
+       0 20:58:11.6
+       0 07:36:05.2
+       0 15:43:49.8
+       0 04:25:09.0
+       0 06:49:27.5
+       0 02:57:52.0
+       0 16:45:44.9
+       0 21:30:57.8
+       0 04:25:09.2
+       0 06:49:27.1
+       0 02:57:52.5
+       0 16:45:44.7
+       0 21:30:57.6
+       0 22:30:04.2
+       0 01:56:51.6
+       1 00:00:00.0
+       1 04:50:38.1
+       1 12:31:35.2
+       1 12:47:53.3
+       1 01:26:00.5
+       1 20:58:11.6
+       1 07:36:05.2
+       1 15:43:49.8
+       1 04:25:09.0
+       1 06:49:27.5
+       1 02:57:52.0
+       1 16:45:44.9
+       1 21:30:57.8
+       1 04:25:09.2
+       1 06:49:27.1
+       1 02:57:52.5
+       1 16:45:44.7
+       1 21:30:57.6
+       1 22:30:04.2
+       1 01:56:51.6
+       2 00:00:00.0
+       2 04:50:38.1
+       2 12:31:35.2
+       2 12:47:53.3
+       2 01:26:00.5
+       2 20:58:11.6
+       2 07:36:05.2
+       2 15:43:49.8
+       2 04:25:09.0
+       2 06:49:27.5
+       2 02:57:52.0
+       2 16:45:44.9
+       2 21:30:57.8
+       2 04:25:09.2
+       2 06:49:27.1
+       2 02:57:52.5
+       2 16:45:44.7
+       2 21:30:57.6
+       2 22:30:04.2
+       2 01:56:51.6
+      54 00:00:00.0
+      54 04:50:38.1
+      54 12:31:35.2
+      54 12:47:53.3
+      54 01:26:00.5
+      54 20:58:11.6
+      54 07:36:05.2
+      54 15:43:49.8
+      54 04:25:09.0
+      54 06:49:27.5
+      54 02:57:52.0
+      54 16:45:44.9
+      54 21:30:57.8
+      54 04:25:09.2
+      54 06:49:27.1
+      54 02:57:52.5
+      54 16:45:44.7
+      54 21:30:57.6
+      54 22:30:04.2
+      54 01:56:51.6
+     681 00:00:00.0
+     681 04:50:38.1
+     681 12:31:35.2
+     681 12:47:53.3
+     681 01:26:00.5
+     681 20:58:11.6
+     681 07:36:05.2
+     681 15:43:49.8
+     681 04:25:09.0
+     681 06:49:27.5
+     681 02:57:52.0
+     681 16:45:44.9
+     681 21:30:57.8
+     681 04:25:09.2
+     681 06:49:27.1
+     681 02:57:52.5
+     681 16:45:44.7
+     681 21:30:57.6
+     681 22:30:04.2
+     681 01:56:51.6
+       0 00:00:00.0
+      -0 04:50:38.1
+      -0 12:31:35.2
+      -0 12:47:53.3
+      -0 01:26:00.5
+      -0 20:58:11.6
+      -0 07:36:05.2
+      -0 15:43:49.8
+      -0 04:25:09.0
+      -0 06:49:27.5
+      -0 02:57:52.0
+      -0 16:45:44.9
+      -0 21:30:57.8
+      -0 04:25:09.2
+      -0 06:49:27.1
+      -0 02:57:52.5
+      -0 16:45:44.7
+      -0 21:30:57.6
+      -0 22:30:04.2
+      -0 01:56:51.6
+      -1 00:00:00.0
+      -1 04:50:38.1
+      -1 12:31:35.2
+      -1 12:47:53.3
+      -1 01:26:00.5
+      -1 20:58:11.6
+      -1 07:36:05.2
+      -1 15:43:49.8
+      -1 04:25:09.0
+      -1 06:49:27.5
+      -1 02:57:52.0
+      -1 16:45:44.9
+      -1 21:30:57.8
+      -1 04:25:09.2
+      -1 06:49:27.1
+      -1 02:57:52.5
+      -1 16:45:44.7
+      -1 21:30:57.6
+      -1 22:30:04.2
+      -1 01:56:51.6
+      -2 00:00:00.0
+      -2 04:50:38.1
+      -2 12:31:35.2
+      -2 12:47:53.3
+      -2 01:26:00.5
+      -2 20:58:11.6
+      -2 07:36:05.2
+      -2 15:43:49.8
+      -2 04:25:09.0
+      -2 06:49:27.5
+      -2 02:57:52.0
+      -2 16:45:44.9
+      -2 21:30:57.8
+      -2 04:25:09.2
+      -2 06:49:27.1
+      -2 02:57:52.5
+      -2 16:45:44.7
+      -2 21:30:57.6
+      -2 22:30:04.2
+      -2 01:56:51.6
+     -54 00:00:00.0
+     -54 04:50:38.1
+     -54 12:31:35.2
+     -54 12:47:53.3
+     -54 01:26:00.5
+     -54 20:58:11.6
+     -54 07:36:05.2
+     -54 15:43:49.8
+     -54 04:25:09.0
+     -54 06:49:27.5
+     -54 02:57:52.0
+     -54 16:45:44.9
+     -54 21:30:57.8
+     -54 04:25:09.2
+     -54 06:49:27.1
+     -54 02:57:52.5
+     -54 16:45:44.7
+     -54 21:30:57.6
+     -54 22:30:04.2
+     -54 01:56:51.6
+    -681 00:00:00.0
+    -681 04:50:38.1
+    -681 12:31:35.2
+    -681 12:47:53.3
+    -681 01:26:00.5
+    -681 20:58:11.6
+    -681 07:36:05.2
+    -681 15:43:49.8
+    -681 04:25:09.0
+    -681 06:49:27.5
+    -681 02:57:52.0
+    -681 16:45:44.9
+    -681 21:30:57.8
+    -681 04:25:09.2
+    -681 06:49:27.1
+    -681 02:57:52.5
+    -681 16:45:44.7
+    -681 21:30:57.6
+    -681 22:30:04.2
+    -681 01:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/dtime18.2.txt b/rust/pspp/src/format/testdata/display/dtime18.2.txt
new file mode 100644
index 0000000000..15e26f8071
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.2.txt
@@ -0,0 +1,6462 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
+   -52:25:09.013
+   -54:49:27.524
+   -50:57:52.016
+   -64:45:44.865
+   -69:30:57.820
+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
+   07:36:05.1896
+   15:43:49.8313
+   04:25:09.0129
+   06:49:27.5238
+   02:57:52.0156
+   16:45:44.8653
+   21:30:57.8205
+   04:25:09.1539
+   06:49:27.1053
+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
+   28:50:38.1230
+   36:31:35.2345
+   36:47:53.3451
+   25:26:00.4561
+   44:58:11.5668
+   31:36:05.1896
+   39:43:49.8313
+   28:25:09.0129
+   30:49:27.5237
+   26:57:52.0157
+   40:45:44.8653
+   45:30:57.8205
+   28:25:09.1540
+   30:49:27.1053
+   26:57:52.4823
+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
+   48:00:00.0000
+   52:50:38.1230
+   60:31:35.2345
+   60:47:53.3451
+   49:26:00.4562
+   68:58:11.5668
+   55:36:05.1896
+   63:43:49.8313
+   52:25:09.0129
+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
+   69:30:57.8205
+   52:25:09.1540
+   54:49:27.1053
+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
+ 1300:50:38.1230
+ 1308:31:35.2345
+ 1308:47:53.3450
+ 1297:26:00.4561
+ 1316:58:11.5668
+ 1303:36:05.1896
+ 1311:43:49.8313
+ 1300:25:09.0129
+ 1302:49:27.5237
+ 1298:57:52.0157
+ 1312:45:44.8653
+ 1317:30:57.8205
+ 1300:25:09.1540
+ 1302:49:27.1053
+ 1298:57:52.4823
+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
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+   2 01:56
+  54 00:00
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+ 681 00:00
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+ 681 20:58
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+ 681 21:30
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+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
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+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
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+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
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+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
+ 0 01:56:51
+ 1 00:00:00
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+ 1 12:31:35
+ 1 12:47:53
+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
+ 1 15:43:49
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
+   54 15:43
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
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+  681 20:58
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+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
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+   -0 21:30
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+   -0 01:56
+   -1 00:00
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+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
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+   -1 02:57
+   -1 16:45
+   -1 21:30
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+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
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+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
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+   -2 06:49
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+   -2 04:25
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
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+  -54 01:26
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
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+  0 02:57:52
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+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
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+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
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+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
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+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
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+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
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+   0 15:43:49
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+   0 16:45:44
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+   0 04:25:09
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+   0 02:57:52
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+   1 00:00:00
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+   1 01:26:00
+   1 20:58:11
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+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
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+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
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+   2 00:00:00
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+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
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+   2 16:45:44
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+   2 06:49:27
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+   2 16:45:44
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+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
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+  -0 12:31:35
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+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
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+  -0 06:49:27
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+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
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+  -1 04:25:09
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
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+ -54 12:31:35
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+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
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+ -54 04:25:09
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+ -54 02:57:52
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+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 02:57
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+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
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+    0 16:45:44
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+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 20:58:11
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+    2 01:26:00
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+    2 07:36:05
+    2 15:43:49
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+    2 06:49:27
+    2 02:57:52
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+    2 02:57:52
+    2 16:45:44
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+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
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+   54 01:26:00
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+   54 07:36:05
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+   54 04:25:09
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+  681 00:00:00
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+  681 16:45:44
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+  681 01:56:51
+    0 00:00:00
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+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
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+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
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+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
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+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
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+  2 01:26:00.5
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+  2 07:36:05.2
+  2 15:43:49.8
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+  2 02:57:52.0
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+  2 04:25:09.2
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+  2 16:45:44.7
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+ 54 00:00:00.0
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+ 54 04:25:09.0
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+ 54 16:45:44.9
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+ 54 04:25:09.2
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+ 54 16:45:44.7
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+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  0 00:00:00.0
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+ -0 20:58:11.6
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+ -0 16:45:44.7
+ -0 21:30:57.6
+ -0 22:30:04.2
+ -0 01:56:51.6
+ -1 00:00:00.0
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+ -1 01:26:00.5
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+ -2 00:00:00.0
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+  -54 00:00:00
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+  -54 16:45:44
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+ -681 02:57:52
+ -681 16:45:44
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+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 02:57:52
+     0 16:45:44
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+     0 01:56:51
+     1 00:00:00
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+     1 15:43:49
+     1 04:25:09
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+     1 16:45:44
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+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 01:26:00
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+     2 07:36:05
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+     2 04:25:09
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+     2 02:57:52
+     2 16:45:44
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+     2 06:49:27
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+     2 16:45:44
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+     2 22:30:04
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+    54 00:00:00
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+    54 12:47:53
+    54 01:26:00
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+    54 07:36:05
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+    54 04:25:09
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+    54 16:45:44
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+    54 04:25:09
+    54 06:49:27
+    54 02:57:52
+    54 16:45:44
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   2 21:30:57.6
+   2 22:30:04.2
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+  54 00:00:00.0
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+   0 00:00:00.0
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+  -2 16:45:44.7
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+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 02:57:52.5
+ -54 16:45:44.7
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+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
+  -681 04:50:38
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
+  0 00:00:00.00
+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
+  0 01:26:00.46
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+  0 02:57:52.02
+  0 16:45:44.87
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+  0 04:25:09.15
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+  0 02:57:52.48
+  0 16:45:44.66
+  0 21:30:57.58
+  0 22:30:04.18
+  0 01:56:51.59
+  1 00:00:00.00
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+  1 12:47:53.35
+  1 01:26:00.46
+  1 20:58:11.57
+  1 07:36:05.19
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+  1 04:25:09.01
+  1 06:49:27.52
+  1 02:57:52.02
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.3.out], [0], [dnl
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+      -681 01:56:51
+])
+AT_CHECK([cat dtime18.1.out], [0], [dnl
+       0 00:00:00.0
+       0 04:50:38.1
+       0 12:31:35.2
+       0 12:47:53.3
+       0 01:26:00.5
+       0 20:58:11.6
+       0 07:36:05.2
+       0 15:43:49.8
+       0 04:25:09.0
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+       0 02:57:52.0
+       0 16:45:44.9
+       0 21:30:57.8
+       0 04:25:09.2
+       0 06:49:27.1
+       0 02:57:52.5
+       0 16:45:44.7
+       0 21:30:57.6
+       0 22:30:04.2
+       0 01:56:51.6
+       1 00:00:00.0
+       1 04:50:38.1
+       1 12:31:35.2
+       1 12:47:53.3
+       1 01:26:00.5
+       1 20:58:11.6
+       1 07:36:05.2
+       1 15:43:49.8
+       1 04:25:09.0
+       1 06:49:27.5
+       1 02:57:52.0
+       1 16:45:44.9
+       1 21:30:57.8
+       1 04:25:09.2
+       1 06:49:27.1
+       1 02:57:52.5
+       1 16:45:44.7
+       1 21:30:57.6
+       1 22:30:04.2
+       1 01:56:51.6
+       2 00:00:00.0
+       2 04:50:38.1
+       2 12:31:35.2
+       2 12:47:53.3
+       2 01:26:00.5
+       2 20:58:11.6
+       2 07:36:05.2
+       2 15:43:49.8
+       2 04:25:09.0
+       2 06:49:27.5
+       2 02:57:52.0
+       2 16:45:44.9
+       2 21:30:57.8
+       2 04:25:09.2
+       2 06:49:27.1
+       2 02:57:52.5
+       2 16:45:44.7
+       2 21:30:57.6
+       2 22:30:04.2
+       2 01:56:51.6
+      54 00:00:00.0
+      54 04:50:38.1
+      54 12:31:35.2
+      54 12:47:53.3
+      54 01:26:00.5
+      54 20:58:11.6
+      54 07:36:05.2
+      54 15:43:49.8
+      54 04:25:09.0
+      54 06:49:27.5
+      54 02:57:52.0
+      54 16:45:44.9
+      54 21:30:57.8
+      54 04:25:09.2
+      54 06:49:27.1
+      54 02:57:52.5
+      54 16:45:44.7
+      54 21:30:57.6
+      54 22:30:04.2
+      54 01:56:51.6
+     681 00:00:00.0
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+     681 04:25:09.2
+     681 06:49:27.1
+     681 02:57:52.5
+     681 16:45:44.7
+     681 21:30:57.6
+     681 22:30:04.2
+     681 01:56:51.6
+       0 00:00:00.0
+      -0 04:50:38.1
+      -0 12:31:35.2
+      -0 12:47:53.3
+      -0 01:26:00.5
+      -0 20:58:11.6
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+      -0 04:25:09.0
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+      -0 02:57:52.0
+      -0 16:45:44.9
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+      -0 04:25:09.2
+      -0 06:49:27.1
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+      -0 16:45:44.7
+      -0 21:30:57.6
+      -0 22:30:04.2
+      -0 01:56:51.6
+      -1 00:00:00.0
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+      -1 12:31:35.2
+      -1 12:47:53.3
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+      -1 20:58:11.6
+      -1 07:36:05.2
+      -1 15:43:49.8
+      -1 04:25:09.0
+      -1 06:49:27.5
+      -1 02:57:52.0
+      -1 16:45:44.9
+      -1 21:30:57.8
+      -1 04:25:09.2
+      -1 06:49:27.1
+      -1 02:57:52.5
+      -1 16:45:44.7
+      -1 21:30:57.6
+      -1 22:30:04.2
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+      -2 00:00:00.0
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+      -2 01:26:00.5
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+      -2 07:36:05.2
+      -2 15:43:49.8
+      -2 04:25:09.0
+      -2 06:49:27.5
+      -2 02:57:52.0
+      -2 16:45:44.9
+      -2 21:30:57.8
+      -2 04:25:09.2
+      -2 06:49:27.1
+      -2 02:57:52.5
+      -2 16:45:44.7
+      -2 21:30:57.6
+      -2 22:30:04.2
+      -2 01:56:51.6
+     -54 00:00:00.0
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+     -54 12:31:35.2
+     -54 12:47:53.3
+     -54 01:26:00.5
+     -54 20:58:11.6
+     -54 07:36:05.2
+     -54 15:43:49.8
+     -54 04:25:09.0
+     -54 06:49:27.5
+     -54 02:57:52.0
+     -54 16:45:44.9
+     -54 21:30:57.8
+     -54 04:25:09.2
+     -54 06:49:27.1
+     -54 02:57:52.5
+     -54 16:45:44.7
+     -54 21:30:57.6
+     -54 22:30:04.2
+     -54 01:56:51.6
+    -681 00:00:00.0
+    -681 04:50:38.1
+    -681 12:31:35.2
+    -681 12:47:53.3
+    -681 01:26:00.5
+    -681 20:58:11.6
+    -681 07:36:05.2
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+    -681 02:57:52.0
+    -681 16:45:44.9
+    -681 21:30:57.8
+    -681 04:25:09.2
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+    -681 02:57:52.5
+    -681 16:45:44.7
+    -681 21:30:57.6
+    -681 22:30:04.2
+    -681 01:56:51.6
+])
+AT_CHECK([cat dtime18.2.out], [0], [dnl
+      0 00:00:00.00
+      0 04:50:38.12
+      0 12:31:35.23
+      0 12:47:53.35
+      0 01:26:00.46
+      0 20:58:11.57
+      0 07:36:05.19
+      0 15:43:49.83
+      0 04:25:09.01
+      0 06:49:27.52
+      0 02:57:52.02
+      0 16:45:44.87
+      0 21:30:57.82
+      0 04:25:09.15
+      0 06:49:27.11
+      0 02:57:52.48
+      0 16:45:44.66
+      0 21:30:57.58
+      0 22:30:04.18
+      0 01:56:51.59
+      1 00:00:00.00
+      1 04:50:38.12
+      1 12:31:35.23
+      1 12:47:53.35
+      1 01:26:00.46
+      1 20:58:11.57
+      1 07:36:05.19
+      1 15:43:49.83
+      1 04:25:09.01
+      1 06:49:27.52
+      1 02:57:52.02
+      1 16:45:44.87
+      1 21:30:57.82
+      1 04:25:09.15
+      1 06:49:27.11
+      1 02:57:52.48
+      1 16:45:44.66
+      1 21:30:57.58
+      1 22:30:04.18
+      1 01:56:51.59
+      2 00:00:00.00
+      2 04:50:38.12
+      2 12:31:35.23
+      2 12:47:53.35
+      2 01:26:00.46
+      2 20:58:11.57
+      2 07:36:05.19
+      2 15:43:49.83
+      2 04:25:09.01
+      2 06:49:27.52
+      2 02:57:52.02
+      2 16:45:44.87
+      2 21:30:57.82
+      2 04:25:09.15
+      2 06:49:27.11
+      2 02:57:52.48
+      2 16:45:44.66
+      2 21:30:57.58
+      2 22:30:04.18
+      2 01:56:51.59
+     54 00:00:00.00
+     54 04:50:38.12
+     54 12:31:35.23
+     54 12:47:53.35
+     54 01:26:00.46
+     54 20:58:11.57
+     54 07:36:05.19
+     54 15:43:49.83
+     54 04:25:09.01
+     54 06:49:27.52
+     54 02:57:52.02
+     54 16:45:44.87
+     54 21:30:57.82
+     54 04:25:09.15
+     54 06:49:27.11
+     54 02:57:52.48
+     54 16:45:44.66
+     54 21:30:57.58
+     54 22:30:04.18
+     54 01:56:51.59
+    681 00:00:00.00
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+    681 12:47:53.35
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+    681 16:45:44.66
+    681 21:30:57.58
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+    681 01:56:51.59
+      0 00:00:00.00
+     -0 04:50:38.12
+     -0 12:31:35.23
+     -0 12:47:53.35
+     -0 01:26:00.46
+     -0 20:58:11.57
+     -0 07:36:05.19
+     -0 15:43:49.83
+     -0 04:25:09.01
+     -0 06:49:27.52
+     -0 02:57:52.02
+     -0 16:45:44.87
+     -0 21:30:57.82
+     -0 04:25:09.15
+     -0 06:49:27.11
+     -0 02:57:52.48
+     -0 16:45:44.66
+     -0 21:30:57.58
+     -0 22:30:04.18
+     -0 01:56:51.59
+     -1 00:00:00.00
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+     -1 12:31:35.23
+     -1 12:47:53.35
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+     -1 20:58:11.57
+     -1 07:36:05.19
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+     -1 04:25:09.01
+     -1 06:49:27.52
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+     -1 16:45:44.87
+     -1 21:30:57.82
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+     -1 02:57:52.48
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+     -1 21:30:57.58
+     -1 22:30:04.18
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+     -2 00:00:00.00
+     -2 04:50:38.12
+     -2 12:31:35.23
+     -2 12:47:53.35
+     -2 01:26:00.46
+     -2 20:58:11.57
+     -2 07:36:05.19
+     -2 15:43:49.83
+     -2 04:25:09.01
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+     -2 02:57:52.02
+     -2 16:45:44.87
+     -2 21:30:57.82
+     -2 04:25:09.15
+     -2 06:49:27.11
+     -2 02:57:52.48
+     -2 16:45:44.66
+     -2 21:30:57.58
+     -2 22:30:04.18
+     -2 01:56:51.59
+    -54 00:00:00.00
+    -54 04:50:38.12
+    -54 12:31:35.23
+    -54 12:47:53.35
+    -54 01:26:00.46
+    -54 20:58:11.57
+    -54 07:36:05.19
+    -54 15:43:49.83
+    -54 04:25:09.01
+    -54 06:49:27.52
+    -54 02:57:52.02
+    -54 16:45:44.87
+    -54 21:30:57.82
+    -54 04:25:09.15
+    -54 06:49:27.11
+    -54 02:57:52.48
+    -54 16:45:44.66
+    -54 21:30:57.58
+    -54 22:30:04.18
+    -54 01:56:51.59
+   -681 00:00:00.00
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+   -681 12:47:53.35
+   -681 01:26:00.46
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+   -681 21:30:57.82
+   -681 04:25:09.15
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+   -681 02:57:52.48
+   -681 16:45:44.66
+   -681 21:30:57.58
+   -681 22:30:04.18
+   -681 01:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/dtime18.3.txt b/rust/pspp/src/format/testdata/display/dtime18.3.txt
new file mode 100644
index 0000000000..72270c2540
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.3.txt
@@ -0,0 +1,6664 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
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+    04:25:09.013
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+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
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+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
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+  1300:25:09.013
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+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
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+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
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+   -45:30:57.820
+   -28:25:09.154
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+   -26:57:52.482
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+   -45:30:57.582
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+   -49:26:00.456
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+   -55:36:05.190
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+   -52:25:09.013
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+   -64:45:44.865
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+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
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+ -1297:26:00.456
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+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
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+ -1317:30:57.820
+ -1300:25:09.154
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+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
+   07:36:05.1896
+   15:43:49.8313
+   04:25:09.0129
+   06:49:27.5238
+   02:57:52.0156
+   16:45:44.8653
+   21:30:57.8205
+   04:25:09.1539
+   06:49:27.1053
+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
+   28:50:38.1230
+   36:31:35.2345
+   36:47:53.3451
+   25:26:00.4561
+   44:58:11.5668
+   31:36:05.1896
+   39:43:49.8313
+   28:25:09.0129
+   30:49:27.5237
+   26:57:52.0157
+   40:45:44.8653
+   45:30:57.8205
+   28:25:09.1540
+   30:49:27.1053
+   26:57:52.4823
+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
+   48:00:00.0000
+   52:50:38.1230
+   60:31:35.2345
+   60:47:53.3451
+   49:26:00.4562
+   68:58:11.5668
+   55:36:05.1896
+   63:43:49.8313
+   52:25:09.0129
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+   1 00:00
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+   1 15:43
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+   1 01:56
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+ 681 00:00
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+ 681 20:58
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+   0 00:00
+  -0 04:50
+  -0 12:31
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+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
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+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
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+  -1 21:30
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+  -1 22:30
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+  -2 00:00
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+  -2 12:31
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+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
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+ -54 00:00
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+ -54 12:31
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+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
+ 0 15:43:49
+ 0 04:25:09
+ 0 06:49:27
+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 04:25:09
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+ 0 02:57:52
+ 0 16:45:44
+ 0 21:30:57
+ 0 22:30:04
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+ 1 00:00:00
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+ 1 12:31:35
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+ 1 01:26:00
+ 1 20:58:11
+ 1 07:36:05
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+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 04:25:09
+ 1 06:49:27
+ 1 02:57:52
+ 1 16:45:44
+ 1 21:30:57
+ 1 22:30:04
+ 1 01:56:51
+ 2 00:00:00
+ 2 04:50:38
+ 2 12:31:35
+ 2 12:47:53
+ 2 01:26:00
+ 2 20:58:11
+ 2 07:36:05
+ 2 15:43:49
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 04:25:09
+ 2 06:49:27
+ 2 02:57:52
+ 2 16:45:44
+ 2 21:30:57
+ 2 22:30:04
+ 2 01:56:51
+   54 00:00
+   54 04:50
+   54 12:31
+   54 12:47
+   54 01:26
+   54 20:58
+   54 07:36
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+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 04:25
+   54 06:49
+   54 02:57
+   54 16:45
+   54 21:30
+   54 22:30
+   54 01:56
+  681 00:00
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+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
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+   -1 00:00
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+   -1 20:58
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+   -2 20:58
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+   -2 01:56
+  -54 00:00
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+ -681 00:00
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+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
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+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
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+  1 01:26:00
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+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
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+  1 04:25:09
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+  1 02:57:52
+  1 16:45:44
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+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
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+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
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+  2 16:45:44
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+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
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+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
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+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
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+ -1 06:49:27
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+ -1 16:45:44
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+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
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+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
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+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
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+ -2 16:45:44
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+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
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+   0 15:43:49
+   0 04:25:09
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+   0 16:45:44
+   0 21:30:57
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+   0 02:57:52
+   0 16:45:44
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+   0 01:56:51
+   1 00:00:00
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+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
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+   1 04:25:09
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+   1 16:45:44
+   1 21:30:57
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+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
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+   2 00:00:00
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+   2 01:26:00
+   2 20:58:11
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+   2 04:25:09
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+   2 06:49:27
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+   2 16:45:44
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+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
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+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
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+ 681 01:26:00
+ 681 20:58:11
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+ 681 16:45:44
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+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
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+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
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+  -0 06:49:27
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+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
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+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
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+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
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+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
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+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
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+ -54 12:31:35
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+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 06:49:27
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+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
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+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
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+    0 04:25:09
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+    0 02:57:52
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+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
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+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
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+    1 04:25:09
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+    1 02:57:52
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+    1 01:56:51
+    2 00:00:00
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+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
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+    2 15:43:49
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+    2 06:49:27
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+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
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+   54 12:47:53
+   54 01:26:00
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+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
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+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
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+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
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+ -681 16:45:44
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+ -681 22:30:04
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+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
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+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
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+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
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+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
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+  1 02:57:52.0
+  1 16:45:44.9
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+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
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+  2 15:43:49.8
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+  2 16:45:44.7
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+ 54 00:00:00.0
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+ 54 16:45:44.9
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+ 54 16:45:44.7
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+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
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+  0 00:00:00.0
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+ -0 01:56:51.6
+ -1 00:00:00.0
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+  -54 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
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+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
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+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+     0 01:56:51
+     1 00:00:00
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+     1 16:45:44
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+     1 22:30:04
+     1 01:56:51
+     2 00:00:00
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+     2 01:26:00
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+     2 07:36:05
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+     2 04:25:09
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+     2 02:57:52
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+     2 16:45:44
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+    54 00:00:00
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+    54 07:36:05
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+    54 01:56:51
+   681 00:00:00
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+     0 00:00:00
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+    -1 00:00:00
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+   -54 00:00:00
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+  -681 00:00:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
+   0 12:47:53.3
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+   1 16:45:44.7
+   1 21:30:57.6
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+   2 04:25:09.2
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+   2 02:57:52.5
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+   2 21:30:57.6
+   2 22:30:04.2
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+  54 00:00:00.0
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+   0 00:00:00.0
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+  -2 16:45:44.7
+  -2 21:30:57.6
+  -2 22:30:04.2
+  -2 01:56:51.6
+ -54 00:00:00.0
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+ -54 12:31:35.2
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+ -54 20:58:11.6
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+ -54 04:25:09.2
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+ -54 02:57:52.5
+ -54 16:45:44.7
+ -54 21:30:57.6
+ -54 22:30:04.2
+ -54 01:56:51.6
+  -681 00:00:00
+  -681 04:50:38
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+  -681 01:26:00
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+  -681 02:57:52
+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
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+])
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+])
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+])
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.3.out], [0], [dnl
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+       -54 04:25:09
+       -54 06:49:27
+       -54 02:57:52
+       -54 16:45:44
+       -54 21:30:57
+       -54 04:25:09
+       -54 06:49:27
+       -54 02:57:52
+       -54 16:45:44
+       -54 21:30:57
+       -54 22:30:04
+       -54 01:56:51
+      -681 00:00:00
+      -681 04:50:38
+      -681 12:31:35
+      -681 12:47:53
+      -681 01:26:00
+      -681 20:58:11
+      -681 07:36:05
+      -681 15:43:49
+      -681 04:25:09
+      -681 06:49:27
+      -681 02:57:52
+      -681 16:45:44
+      -681 21:30:57
+      -681 04:25:09
+      -681 06:49:27
+      -681 02:57:52
+      -681 16:45:44
+      -681 21:30:57
+      -681 22:30:04
+      -681 01:56:51
+])
+AT_CHECK([cat dtime18.1.out], [0], [dnl
+       0 00:00:00.0
+       0 04:50:38.1
+       0 12:31:35.2
+       0 12:47:53.3
+       0 01:26:00.5
+       0 20:58:11.6
+       0 07:36:05.2
+       0 15:43:49.8
+       0 04:25:09.0
+       0 06:49:27.5
+       0 02:57:52.0
+       0 16:45:44.9
+       0 21:30:57.8
+       0 04:25:09.2
+       0 06:49:27.1
+       0 02:57:52.5
+       0 16:45:44.7
+       0 21:30:57.6
+       0 22:30:04.2
+       0 01:56:51.6
+       1 00:00:00.0
+       1 04:50:38.1
+       1 12:31:35.2
+       1 12:47:53.3
+       1 01:26:00.5
+       1 20:58:11.6
+       1 07:36:05.2
+       1 15:43:49.8
+       1 04:25:09.0
+       1 06:49:27.5
+       1 02:57:52.0
+       1 16:45:44.9
+       1 21:30:57.8
+       1 04:25:09.2
+       1 06:49:27.1
+       1 02:57:52.5
+       1 16:45:44.7
+       1 21:30:57.6
+       1 22:30:04.2
+       1 01:56:51.6
+       2 00:00:00.0
+       2 04:50:38.1
+       2 12:31:35.2
+       2 12:47:53.3
+       2 01:26:00.5
+       2 20:58:11.6
+       2 07:36:05.2
+       2 15:43:49.8
+       2 04:25:09.0
+       2 06:49:27.5
+       2 02:57:52.0
+       2 16:45:44.9
+       2 21:30:57.8
+       2 04:25:09.2
+       2 06:49:27.1
+       2 02:57:52.5
+       2 16:45:44.7
+       2 21:30:57.6
+       2 22:30:04.2
+       2 01:56:51.6
+      54 00:00:00.0
+      54 04:50:38.1
+      54 12:31:35.2
+      54 12:47:53.3
+      54 01:26:00.5
+      54 20:58:11.6
+      54 07:36:05.2
+      54 15:43:49.8
+      54 04:25:09.0
+      54 06:49:27.5
+      54 02:57:52.0
+      54 16:45:44.9
+      54 21:30:57.8
+      54 04:25:09.2
+      54 06:49:27.1
+      54 02:57:52.5
+      54 16:45:44.7
+      54 21:30:57.6
+      54 22:30:04.2
+      54 01:56:51.6
+     681 00:00:00.0
+     681 04:50:38.1
+     681 12:31:35.2
+     681 12:47:53.3
+     681 01:26:00.5
+     681 20:58:11.6
+     681 07:36:05.2
+     681 15:43:49.8
+     681 04:25:09.0
+     681 06:49:27.5
+     681 02:57:52.0
+     681 16:45:44.9
+     681 21:30:57.8
+     681 04:25:09.2
+     681 06:49:27.1
+     681 02:57:52.5
+     681 16:45:44.7
+     681 21:30:57.6
+     681 22:30:04.2
+     681 01:56:51.6
+       0 00:00:00.0
+      -0 04:50:38.1
+      -0 12:31:35.2
+      -0 12:47:53.3
+      -0 01:26:00.5
+      -0 20:58:11.6
+      -0 07:36:05.2
+      -0 15:43:49.8
+      -0 04:25:09.0
+      -0 06:49:27.5
+      -0 02:57:52.0
+      -0 16:45:44.9
+      -0 21:30:57.8
+      -0 04:25:09.2
+      -0 06:49:27.1
+      -0 02:57:52.5
+      -0 16:45:44.7
+      -0 21:30:57.6
+      -0 22:30:04.2
+      -0 01:56:51.6
+      -1 00:00:00.0
+      -1 04:50:38.1
+      -1 12:31:35.2
+      -1 12:47:53.3
+      -1 01:26:00.5
+      -1 20:58:11.6
+      -1 07:36:05.2
+      -1 15:43:49.8
+      -1 04:25:09.0
+      -1 06:49:27.5
+      -1 02:57:52.0
+      -1 16:45:44.9
+      -1 21:30:57.8
+      -1 04:25:09.2
+      -1 06:49:27.1
+      -1 02:57:52.5
+      -1 16:45:44.7
+      -1 21:30:57.6
+      -1 22:30:04.2
+      -1 01:56:51.6
+      -2 00:00:00.0
+      -2 04:50:38.1
+      -2 12:31:35.2
+      -2 12:47:53.3
+      -2 01:26:00.5
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+      -2 07:36:05.2
+      -2 15:43:49.8
+      -2 04:25:09.0
+      -2 06:49:27.5
+      -2 02:57:52.0
+      -2 16:45:44.9
+      -2 21:30:57.8
+      -2 04:25:09.2
+      -2 06:49:27.1
+      -2 02:57:52.5
+      -2 16:45:44.7
+      -2 21:30:57.6
+      -2 22:30:04.2
+      -2 01:56:51.6
+     -54 00:00:00.0
+     -54 04:50:38.1
+     -54 12:31:35.2
+     -54 12:47:53.3
+     -54 01:26:00.5
+     -54 20:58:11.6
+     -54 07:36:05.2
+     -54 15:43:49.8
+     -54 04:25:09.0
+     -54 06:49:27.5
+     -54 02:57:52.0
+     -54 16:45:44.9
+     -54 21:30:57.8
+     -54 04:25:09.2
+     -54 06:49:27.1
+     -54 02:57:52.5
+     -54 16:45:44.7
+     -54 21:30:57.6
+     -54 22:30:04.2
+     -54 01:56:51.6
+    -681 00:00:00.0
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+    -681 12:47:53.3
+    -681 01:26:00.5
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+    -681 02:57:52.5
+    -681 16:45:44.7
+    -681 21:30:57.6
+    -681 22:30:04.2
+    -681 01:56:51.6
+])
+AT_CHECK([cat dtime18.2.out], [0], [dnl
+      0 00:00:00.00
+      0 04:50:38.12
+      0 12:31:35.23
+      0 12:47:53.35
+      0 01:26:00.46
+      0 20:58:11.57
+      0 07:36:05.19
+      0 15:43:49.83
+      0 04:25:09.01
+      0 06:49:27.52
+      0 02:57:52.02
+      0 16:45:44.87
+      0 21:30:57.82
+      0 04:25:09.15
+      0 06:49:27.11
+      0 02:57:52.48
+      0 16:45:44.66
+      0 21:30:57.58
+      0 22:30:04.18
+      0 01:56:51.59
+      1 00:00:00.00
+      1 04:50:38.12
+      1 12:31:35.23
+      1 12:47:53.35
+      1 01:26:00.46
+      1 20:58:11.57
+      1 07:36:05.19
+      1 15:43:49.83
+      1 04:25:09.01
+      1 06:49:27.52
+      1 02:57:52.02
+      1 16:45:44.87
+      1 21:30:57.82
+      1 04:25:09.15
+      1 06:49:27.11
+      1 02:57:52.48
+      1 16:45:44.66
+      1 21:30:57.58
+      1 22:30:04.18
+      1 01:56:51.59
+      2 00:00:00.00
+      2 04:50:38.12
+      2 12:31:35.23
+      2 12:47:53.35
+      2 01:26:00.46
+      2 20:58:11.57
+      2 07:36:05.19
+      2 15:43:49.83
+      2 04:25:09.01
+      2 06:49:27.52
+      2 02:57:52.02
+      2 16:45:44.87
+      2 21:30:57.82
+      2 04:25:09.15
+      2 06:49:27.11
+      2 02:57:52.48
+      2 16:45:44.66
+      2 21:30:57.58
+      2 22:30:04.18
+      2 01:56:51.59
+     54 00:00:00.00
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+     54 12:31:35.23
+     54 12:47:53.35
+     54 01:26:00.46
+     54 20:58:11.57
+     54 07:36:05.19
+     54 15:43:49.83
+     54 04:25:09.01
+     54 06:49:27.52
+     54 02:57:52.02
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+     54 04:25:09.15
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+     54 02:57:52.48
+     54 16:45:44.66
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+     54 22:30:04.18
+     54 01:56:51.59
+    681 00:00:00.00
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+    681 12:47:53.35
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+    681 06:49:27.11
+    681 02:57:52.48
+    681 16:45:44.66
+    681 21:30:57.58
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+    681 01:56:51.59
+      0 00:00:00.00
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+     -0 01:26:00.46
+     -0 20:58:11.57
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+     -0 04:25:09.01
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+     -0 02:57:52.02
+     -0 16:45:44.87
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+     -0 16:45:44.66
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+     -1 00:00:00.00
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+     -1 12:47:53.35
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+     -1 20:58:11.57
+     -1 07:36:05.19
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+     -1 04:25:09.01
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+     -1 16:45:44.87
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+     -1 02:57:52.48
+     -1 16:45:44.66
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+     -1 22:30:04.18
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+     -2 00:00:00.00
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+     -2 01:26:00.46
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+     -2 04:25:09.15
+     -2 06:49:27.11
+     -2 02:57:52.48
+     -2 16:45:44.66
+     -2 21:30:57.58
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+    -54 04:25:09.01
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+    -54 16:45:44.87
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+    -54 02:57:52.48
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+    -54 21:30:57.58
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+   -681 00:00:00.00
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+   -681 12:47:53.35
+   -681 01:26:00.46
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+   -681 02:57:52.48
+   -681 16:45:44.66
+   -681 21:30:57.58
+   -681 22:30:04.18
+   -681 01:56:51.59
+])
+AT_CHECK([cat dtime18.3.out], [0], [dnl
+     0 00:00:00.000
+     0 04:50:38.123
+     0 12:31:35.235
+     0 12:47:53.345
+     0 01:26:00.456
+     0 20:58:11.567
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+     0 04:25:09.013
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+     0 02:57:52.016
+     0 16:45:44.865
+     0 21:30:57.820
+     0 04:25:09.154
+     0 06:49:27.105
+     0 02:57:52.482
+     0 16:45:44.658
+     0 21:30:57.582
+     0 22:30:04.183
+     0 01:56:51.593
+     1 00:00:00.000
+     1 04:50:38.123
+     1 12:31:35.235
+     1 12:47:53.345
+     1 01:26:00.456
+     1 20:58:11.567
+     1 07:36:05.190
+     1 15:43:49.831
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+     1 06:49:27.524
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+     1 21:30:57.820
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+     1 02:57:52.482
+     1 16:45:44.658
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+     2 12:47:53.345
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+     2 20:58:11.567
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+     2 06:49:27.105
+     2 02:57:52.482
+     2 16:45:44.658
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+    54 01:26:00.456
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+  -681 00:00:00.000
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+  -681 16:45:44.658
+  -681 21:30:57.582
+  -681 22:30:04.183
+  -681 01:56:51.593
diff --git a/rust/pspp/src/format/testdata/display/dtime18.4.txt b/rust/pspp/src/format/testdata/display/dtime18.4.txt
new file mode 100644
index 0000000000..6ee64201c8
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.4.txt
@@ -0,0 +1,6866 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
+  0 12:47
+  0 01:26
+  0 20:58
+  0 07:36
+  0 15:43
+  0 04:25
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+  0 21:30
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+  1 21:30
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+  2 00:00
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+  2 21:30
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+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
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+ 54 12:31
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+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
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+ ********
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+ ********
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+ ********
+ ********
+ ********
+  0 00:00
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+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
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+ -0 16:45
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+ -0 22:30
+ -0 01:56
+ -1 00:00
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+ -2 16:45
+ -2 21:30
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+ -2 01:56
+ ********
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+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
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+   1 01:56
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+   0 00:00
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+ -54 00:00
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+ -54 16:45
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+ -54 01:56
+ *********
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+ *********
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+ *********
+ *********
+ *********
+ *********
+ *********
+])
+AT_CHECK([cat dtime10.out], [0], [dnl
+ 0 00:00:00
+ 0 04:50:38
+ 0 12:31:35
+ 0 12:47:53
+ 0 01:26:00
+ 0 20:58:11
+ 0 07:36:05
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+ 0 00:00:00
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+   -0 15:43
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+  -54 00:00
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+ -681 00:00
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+ -681 06:49
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+ -681 16:45
+ -681 21:30
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+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
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+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
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+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
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+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
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+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
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+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
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+  2 01:26:00
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+  2 07:36:05
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+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
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+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
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+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
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+   -54 12:31
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+   -54 01:26
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+   -54 07:36
+   -54 15:43
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+   -54 16:45
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+   -54 04:25
+   -54 06:49
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+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
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+  -681 01:26
+  -681 20:58
+  -681 07:36
+  -681 15:43
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
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+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
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+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
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+    1 00:00:00
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+    1 04:25:09
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+    1 21:30:57
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+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
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+    2 00:00:00
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+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
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+  1 16:45:44.7
+  1 21:30:57.6
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+  1 01:56:51.6
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+  2 02:57:52.5
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+  0 00:00:00.0
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+ -0 22:30:04.2
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+ -1 04:25:09.0
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+ -1 16:45:44.7
+ -1 21:30:57.6
+ -1 22:30:04.2
+ -1 01:56:51.6
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+ -2 02:57:52.5
+ -2 16:45:44.7
+ -2 21:30:57.6
+ -2 22:30:04.2
+ -2 01:56:51.6
+  -54 00:00:00
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+ -681 00:00:00
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+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
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+ -681 01:56:51
+])
+AT_CHECK([cat dtime14.out], [0], [dnl
+     0 00:00:00
+     0 04:50:38
+     0 12:31:35
+     0 12:47:53
+     0 01:26:00
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+   681 01:56:51
+     0 00:00:00
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+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
+   0 00:00:00.0
+   0 04:50:38.1
+   0 12:31:35.2
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+   1 16:45:44.7
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+   2 01:56:51.6
+  54 00:00:00.0
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+   0 00:00:00.0
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+  -1 00:00:00.0
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+  -2 01:26:00.5
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+  -2 16:45:44.7
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+ -54 00:00:00.0
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+  -681 16:45:44
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+  -681 01:56:51
+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+  0 04:50:38.12
+  0 12:31:35.23
+  0 12:47:53.35
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+  0 16:45:44.66
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+  1 16:45:44.87
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+  1 16:45:44.66
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+  1 01:56:51.59
+  2 00:00:00.00
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+  2 16:45:44.66
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+ 54 00:00:00.00
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+ -54 00:00:00.0
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+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
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+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
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+      2 00:00:00
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+     54 00:00:00
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+    681 00:00:00
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+      0 00:00:00
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+     -1 00:00:00
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+    -54 00:00:00
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+   -681 00:00:00
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+   -681 02:57:52
+   -681 16:45:44
+   -681 21:30:57
+   -681 22:30:04
+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
+    0 00:00:00.0
+    0 04:50:38.1
+    0 12:31:35.2
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+   54 00:00:00.0
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+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
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+])
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+])
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.4.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime18.out], [0], [dnl
+         0 00:00:00
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+         0 12:31:35
+         0 12:47:53
+         0 01:26:00
+         0 20:58:11
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+         0 16:45:44
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+         0 22:30:04
+         0 01:56:51
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+])
+AT_CHECK([cat dtime18.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime18.2.out], [0], [dnl
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+   -681 16:45:44.66
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+   -681 22:30:04.18
+   -681 01:56:51.59
+])
+AT_CHECK([cat dtime18.3.out], [0], [dnl
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+     0 12:31:35.235
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+])
+AT_CHECK([cat dtime18.4.out], [0], [dnl
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diff --git a/rust/pspp/src/format/testdata/display/dtime18.5.txt b/rust/pspp/src/format/testdata/display/dtime18.5.txt
new file mode 100644
index 0000000000..8e072d45df
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.5.txt
@@ -0,0 +1,200 @@
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+ -681 01:56:51.5932
diff --git a/rust/pspp/src/format/testdata/display/dtime18.6.txt b/rust/pspp/src/format/testdata/display/dtime18.6.txt
new file mode 100644
index 0000000000..70aef51cd1
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.6.txt
@@ -0,0 +1,200 @@
+  0 00:00:00.000000
+  0 04:50:38.123010
+  0 12:31:35.234530
+  0 12:47:53.345050
+  0 01:26:00.456150
+  0 20:58:11.566770
+  0 07:36:05.189640
+  0 15:43:49.831320
+  0 04:25:09.012930
+  0 06:49:27.523750
+  0 02:57:52.015650
+  0 16:45:44.865290
+  0 21:30:57.820470
+  0 04:25:09.153950
+  0 06:49:27.105330
+  0 02:57:52.482290
+  0 16:45:44.658270
+  0 21:30:57.582190
+  0 22:30:04.183470
+  0 01:56:51.593190
+  1 00:00:00.000000
+  1 04:50:38.123010
+  1 12:31:35.234530
+  1 12:47:53.345050
+  1 01:26:00.456150
+  1 20:58:11.566770
+  1 07:36:05.189640
+  1 15:43:49.831320
+  1 04:25:09.012930
+  1 06:49:27.523750
+  1 02:57:52.015650
+  1 16:45:44.865290
+  1 21:30:57.820470
+  1 04:25:09.153950
+  1 06:49:27.105330
+  1 02:57:52.482290
+  1 16:45:44.658270
+  1 21:30:57.582190
+  1 22:30:04.183470
+  1 01:56:51.593190
+  2 00:00:00.000000
+  2 04:50:38.123010
+  2 12:31:35.234530
+  2 12:47:53.345050
+  2 01:26:00.456150
+  2 20:58:11.566770
+  2 07:36:05.189640
+  2 15:43:49.831320
+  2 04:25:09.012930
+  2 06:49:27.523750
+  2 02:57:52.015650
+  2 16:45:44.865290
+  2 21:30:57.820470
+  2 04:25:09.153950
+  2 06:49:27.105330
+  2 02:57:52.482290
+  2 16:45:44.658270
+  2 21:30:57.582190
+  2 22:30:04.183470
+  2 01:56:51.593190
+ 54 00:00:00.000000
+ 54 04:50:38.123010
+ 54 12:31:35.234530
+ 54 12:47:53.345050
+ 54 01:26:00.456150
+ 54 20:58:11.566770
+ 54 07:36:05.189640
+ 54 15:43:49.831320
+ 54 04:25:09.012930
+ 54 06:49:27.523750
+ 54 02:57:52.015650
+ 54 16:45:44.865290
+ 54 21:30:57.820470
+ 54 04:25:09.153950
+ 54 06:49:27.105330
+ 54 02:57:52.482290
+ 54 16:45:44.658270
+ 54 21:30:57.582190
+ 54 22:30:04.183470
+ 54 01:56:51.593190
+ 681 00:00:00.00000
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+ 681 12:31:35.23453
+ 681 12:47:53.34505
+ 681 01:26:00.45615
+ 681 20:58:11.56677
+ 681 07:36:05.18964
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+ 681 02:57:52.01565
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+ 681 01:56:51.59319
+  0 00:00:00.000000
+ -0 04:50:38.123010
+ -0 12:31:35.234530
+ -0 12:47:53.345050
+ -0 01:26:00.456150
+ -0 20:58:11.566770
+ -0 07:36:05.189640
+ -0 15:43:49.831320
+ -0 04:25:09.012930
+ -0 06:49:27.523750
+ -0 02:57:52.015650
+ -0 16:45:44.865290
+ -0 21:30:57.820470
+ -0 04:25:09.153950
+ -0 06:49:27.105330
+ -0 02:57:52.482290
+ -0 16:45:44.658270
+ -0 21:30:57.582190
+ -0 22:30:04.183470
+ -0 01:56:51.593190
+ -1 00:00:00.000000
+ -1 04:50:38.123010
+ -1 12:31:35.234530
+ -1 12:47:53.345050
+ -1 01:26:00.456150
+ -1 20:58:11.566770
+ -1 07:36:05.189640
+ -1 15:43:49.831320
+ -1 04:25:09.012930
+ -1 06:49:27.523750
+ -1 02:57:52.015650
+ -1 16:45:44.865290
+ -1 21:30:57.820470
+ -1 04:25:09.153950
+ -1 06:49:27.105330
+ -1 02:57:52.482290
+ -1 16:45:44.658270
+ -1 21:30:57.582190
+ -1 22:30:04.183470
+ -1 01:56:51.593190
+ -2 00:00:00.000000
+ -2 04:50:38.123010
+ -2 12:31:35.234530
+ -2 12:47:53.345050
+ -2 01:26:00.456150
+ -2 20:58:11.566770
+ -2 07:36:05.189640
+ -2 15:43:49.831320
+ -2 04:25:09.012930
+ -2 06:49:27.523750
+ -2 02:57:52.015650
+ -2 16:45:44.865290
+ -2 21:30:57.820470
+ -2 04:25:09.153950
+ -2 06:49:27.105330
+ -2 02:57:52.482290
+ -2 16:45:44.658270
+ -2 21:30:57.582190
+ -2 22:30:04.183470
+ -2 01:56:51.593190
+ -54 00:00:00.00000
+ -54 04:50:38.12301
+ -54 12:31:35.23453
+ -54 12:47:53.34505
+ -54 01:26:00.45615
+ -54 20:58:11.56677
+ -54 07:36:05.18964
+ -54 15:43:49.83132
+ -54 04:25:09.01293
+ -54 06:49:27.52375
+ -54 02:57:52.01565
+ -54 16:45:44.86529
+ -54 21:30:57.82047
+ -54 04:25:09.15395
+ -54 06:49:27.10533
+ -54 02:57:52.48229
+ -54 16:45:44.65827
+ -54 21:30:57.58219
+ -54 22:30:04.18347
+ -54 01:56:51.59319
+ -681 00:00:00.0000
+ -681 04:50:38.1230
+ -681 12:31:35.2345
+ -681 12:47:53.3450
+ -681 01:26:00.4562
+ -681 20:58:11.5668
+ -681 07:36:05.1896
+ -681 15:43:49.8313
+ -681 04:25:09.0129
+ -681 06:49:27.5237
+ -681 02:57:52.0156
+ -681 16:45:44.8653
+ -681 21:30:57.8205
+ -681 04:25:09.1539
+ -681 06:49:27.1053
+ -681 02:57:52.4823
+ -681 16:45:44.6583
+ -681 21:30:57.5822
+ -681 22:30:04.1835
+ -681 01:56:51.5932
diff --git a/rust/pspp/src/format/testdata/display/dtime18.txt b/rust/pspp/src/format/testdata/display/dtime18.txt
new file mode 100644
index 0000000000..1909e2ced2
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime18.txt
@@ -0,0 +1,6058 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
+   -52:25:09.013
+   -54:49:27.524
+   -50:57:52.016
+   -64:45:44.865
+   -69:30:57.820
+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
+   07:36:05.1896
+   15:43:49.8313
+   04:25:09.0129
+   06:49:27.5238
+   02:57:52.0156
+   16:45:44.8653
+   21:30:57.8205
+   04:25:09.1539
+   06:49:27.1053
+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
+   28:50:38.1230
+   36:31:35.2345
+   36:47:53.3451
+   25:26:00.4561
+   44:58:11.5668
+   31:36:05.1896
+   39:43:49.8313
+   28:25:09.0129
+   30:49:27.5237
+   26:57:52.0157
+   40:45:44.8653
+   45:30:57.8205
+   28:25:09.1540
+   30:49:27.1053
+   26:57:52.4823
+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
+   48:00:00.0000
+   52:50:38.1230
+   60:31:35.2345
+   60:47:53.3451
+   49:26:00.4562
+   68:58:11.5668
+   55:36:05.1896
+   63:43:49.8313
+   52:25:09.0129
+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
+   69:30:57.8205
+   52:25:09.1540
+   54:49:27.1053
+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
+ 1300:50:38.1230
+ 1308:31:35.2345
+ 1308:47:53.3450
+ 1297:26:00.4561
+ 1316:58:11.5668
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+ 1300:25:09.0129
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+ 1298:57:52.0157
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+ 1300:25:09.1540
+ 1302:49:27.1053
+ 1298:57:52.4823
+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
+ 16344:00:00.000
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+ 16356:47:53.345
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+ 16364:58:11.567
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+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
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+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+   00:00:00.0000
+  -04:50:38.1230
+  -12:31:35.2345
+  -12:47:53.3451
+  -01:26:00.4561
+  -20:58:11.5668
+  -07:36:05.1896
+  -15:43:49.8313
+  -04:25:09.0129
+  -06:49:27.5238
+  -02:57:52.0156
+  -16:45:44.8653
+  -21:30:57.8205
+  -04:25:09.1539
+  -06:49:27.1053
+  -02:57:52.4823
+  -16:45:44.6583
+  -21:30:57.5822
+  -22:30:04.1835
+  -01:56:51.5932
+  -24:00:00.0000
+  -28:50:38.1230
+  -36:31:35.2345
+  -36:47:53.3451
+  -25:26:00.4561
+  -44:58:11.5668
+  -31:36:05.1896
+  -39:43:49.8313
+  -28:25:09.0129
+  -30:49:27.5237
+  -26:57:52.0157
+  -40:45:44.8653
+  -45:30:57.8205
+  -28:25:09.1540
+  -30:49:27.1053
+  -26:57:52.4823
+  -40:45:44.6583
+  -45:30:57.5822
+  -46:30:04.1835
+  -25:56:51.5932
+  -48:00:00.0000
+  -52:50:38.1230
+  -60:31:35.2345
+  -60:47:53.3451
+  -49:26:00.4562
+  -68:58:11.5668
+  -55:36:05.1896
+  -63:43:49.8313
+  -52:25:09.0129
+  -54:49:27.5237
+  -50:57:52.0156
+  -64:45:44.8653
+  -69:30:57.8205
+  -52:25:09.1540
+  -54:49:27.1053
+  -50:57:52.4823
+  -64:45:44.6583
+  -69:30:57.5822
+  -70:30:04.1835
+  -49:56:51.5932
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.5.out], [0], [dnl
+  00:00:00.00000
+  04:50:38.12301
+  12:31:35.23453
+  12:47:53.34505
+  01:26:00.45615
+  20:58:11.56677
+  07:36:05.18964
+  15:43:49.83132
+  04:25:09.01293
+  06:49:27.52375
+  02:57:52.01565
+  16:45:44.86529
+  21:30:57.82047
+  04:25:09.15395
+  06:49:27.10533
+  02:57:52.48229
+  16:45:44.65827
+  21:30:57.58219
+  22:30:04.18347
+  01:56:51.59319
+  24:00:00.00000
+  28:50:38.12301
+  36:31:35.23453
+  36:47:53.34505
+  25:26:00.45615
+  44:58:11.56677
+  31:36:05.18964
+  39:43:49.83132
+  28:25:09.01293
+  30:49:27.52375
+  26:57:52.01565
+  40:45:44.86529
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+])
+AT_CHECK([cat time15.6.out], [0], [dnl
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+])
+AT_CHECK([cat dtime8.out], [0], [dnl
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+])
+AT_CHECK([cat dtime9.out], [0], [dnl
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+])
+AT_CHECK([cat dtime10.out], [0], [dnl
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+  681 00:00
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+  681 12:47
+  681 01:26
+  681 20:58
+  681 07:36
+  681 15:43
+  681 04:25
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+  681 02:57
+  681 16:45
+  681 21:30
+  681 04:25
+  681 06:49
+  681 02:57
+  681 16:45
+  681 21:30
+  681 22:30
+  681 01:56
+ 0 00:00:00
+   -0 04:50
+   -0 12:31
+   -0 12:47
+   -0 01:26
+   -0 20:58
+   -0 07:36
+   -0 15:43
+   -0 04:25
+   -0 06:49
+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 04:25
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+   -0 02:57
+   -0 16:45
+   -0 21:30
+   -0 22:30
+   -0 01:56
+   -1 00:00
+   -1 04:50
+   -1 12:31
+   -1 12:47
+   -1 01:26
+   -1 20:58
+   -1 07:36
+   -1 15:43
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 04:25
+   -1 06:49
+   -1 02:57
+   -1 16:45
+   -1 21:30
+   -1 22:30
+   -1 01:56
+   -2 00:00
+   -2 04:50
+   -2 12:31
+   -2 12:47
+   -2 01:26
+   -2 20:58
+   -2 07:36
+   -2 15:43
+   -2 04:25
+   -2 06:49
+   -2 02:57
+   -2 16:45
+   -2 21:30
+   -2 04:25
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+   -2 16:45
+   -2 21:30
+   -2 22:30
+   -2 01:56
+  -54 00:00
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+  -54 12:31
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+  -54 01:26
+  -54 20:58
+  -54 07:36
+  -54 15:43
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+  -54 16:45
+  -54 21:30
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+  -54 02:57
+  -54 16:45
+  -54 21:30
+  -54 22:30
+  -54 01:56
+ -681 00:00
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+ -681 01:26
+ -681 20:58
+ -681 07:36
+ -681 15:43
+ -681 04:25
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+ -681 16:45
+ -681 21:30
+ -681 04:25
+ -681 06:49
+ -681 02:57
+ -681 16:45
+ -681 21:30
+ -681 22:30
+ -681 01:56
+])
+AT_CHECK([cat dtime11.out], [0], [dnl
+  0 00:00:00
+  0 04:50:38
+  0 12:31:35
+  0 12:47:53
+  0 01:26:00
+  0 20:58:11
+  0 07:36:05
+  0 15:43:49
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 04:25:09
+  0 06:49:27
+  0 02:57:52
+  0 16:45:44
+  0 21:30:57
+  0 22:30:04
+  0 01:56:51
+  1 00:00:00
+  1 04:50:38
+  1 12:31:35
+  1 12:47:53
+  1 01:26:00
+  1 20:58:11
+  1 07:36:05
+  1 15:43:49
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 04:25:09
+  1 06:49:27
+  1 02:57:52
+  1 16:45:44
+  1 21:30:57
+  1 22:30:04
+  1 01:56:51
+  2 00:00:00
+  2 04:50:38
+  2 12:31:35
+  2 12:47:53
+  2 01:26:00
+  2 20:58:11
+  2 07:36:05
+  2 15:43:49
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 04:25:09
+  2 06:49:27
+  2 02:57:52
+  2 16:45:44
+  2 21:30:57
+  2 22:30:04
+  2 01:56:51
+ 54 00:00:00
+ 54 04:50:38
+ 54 12:31:35
+ 54 12:47:53
+ 54 01:26:00
+ 54 20:58:11
+ 54 07:36:05
+ 54 15:43:49
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 04:25:09
+ 54 06:49:27
+ 54 02:57:52
+ 54 16:45:44
+ 54 21:30:57
+ 54 22:30:04
+ 54 01:56:51
+   681 00:00
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+   681 12:31
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+   681 01:26
+   681 20:58
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+   681 15:43
+   681 04:25
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+   681 02:57
+   681 16:45
+   681 21:30
+   681 04:25
+   681 06:49
+   681 02:57
+   681 16:45
+   681 21:30
+   681 22:30
+   681 01:56
+  0 00:00:00
+ -0 04:50:38
+ -0 12:31:35
+ -0 12:47:53
+ -0 01:26:00
+ -0 20:58:11
+ -0 07:36:05
+ -0 15:43:49
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 04:25:09
+ -0 06:49:27
+ -0 02:57:52
+ -0 16:45:44
+ -0 21:30:57
+ -0 22:30:04
+ -0 01:56:51
+ -1 00:00:00
+ -1 04:50:38
+ -1 12:31:35
+ -1 12:47:53
+ -1 01:26:00
+ -1 20:58:11
+ -1 07:36:05
+ -1 15:43:49
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 04:25:09
+ -1 06:49:27
+ -1 02:57:52
+ -1 16:45:44
+ -1 21:30:57
+ -1 22:30:04
+ -1 01:56:51
+ -2 00:00:00
+ -2 04:50:38
+ -2 12:31:35
+ -2 12:47:53
+ -2 01:26:00
+ -2 20:58:11
+ -2 07:36:05
+ -2 15:43:49
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 04:25:09
+ -2 06:49:27
+ -2 02:57:52
+ -2 16:45:44
+ -2 21:30:57
+ -2 22:30:04
+ -2 01:56:51
+   -54 00:00
+   -54 04:50
+   -54 12:31
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+   -54 01:26
+   -54 20:58
+   -54 07:36
+   -54 15:43
+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
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+   -54 04:25
+   -54 06:49
+   -54 02:57
+   -54 16:45
+   -54 21:30
+   -54 22:30
+   -54 01:56
+  -681 00:00
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+  -681 01:26
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+  -681 07:36
+  -681 15:43
+  -681 04:25
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+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 04:25
+  -681 06:49
+  -681 02:57
+  -681 16:45
+  -681 21:30
+  -681 22:30
+  -681 01:56
+])
+AT_CHECK([cat dtime12.out], [0], [dnl
+   0 00:00:00
+   0 04:50:38
+   0 12:31:35
+   0 12:47:53
+   0 01:26:00
+   0 20:58:11
+   0 07:36:05
+   0 15:43:49
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 04:25:09
+   0 06:49:27
+   0 02:57:52
+   0 16:45:44
+   0 21:30:57
+   0 22:30:04
+   0 01:56:51
+   1 00:00:00
+   1 04:50:38
+   1 12:31:35
+   1 12:47:53
+   1 01:26:00
+   1 20:58:11
+   1 07:36:05
+   1 15:43:49
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 04:25:09
+   1 06:49:27
+   1 02:57:52
+   1 16:45:44
+   1 21:30:57
+   1 22:30:04
+   1 01:56:51
+   2 00:00:00
+   2 04:50:38
+   2 12:31:35
+   2 12:47:53
+   2 01:26:00
+   2 20:58:11
+   2 07:36:05
+   2 15:43:49
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 04:25:09
+   2 06:49:27
+   2 02:57:52
+   2 16:45:44
+   2 21:30:57
+   2 22:30:04
+   2 01:56:51
+  54 00:00:00
+  54 04:50:38
+  54 12:31:35
+  54 12:47:53
+  54 01:26:00
+  54 20:58:11
+  54 07:36:05
+  54 15:43:49
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 04:25:09
+  54 06:49:27
+  54 02:57:52
+  54 16:45:44
+  54 21:30:57
+  54 22:30:04
+  54 01:56:51
+ 681 00:00:00
+ 681 04:50:38
+ 681 12:31:35
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+ 681 01:26:00
+ 681 20:58:11
+ 681 07:36:05
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+ 681 04:25:09
+ 681 06:49:27
+ 681 02:57:52
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+ 681 06:49:27
+ 681 02:57:52
+ 681 16:45:44
+ 681 21:30:57
+ 681 22:30:04
+ 681 01:56:51
+   0 00:00:00
+  -0 04:50:38
+  -0 12:31:35
+  -0 12:47:53
+  -0 01:26:00
+  -0 20:58:11
+  -0 07:36:05
+  -0 15:43:49
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 04:25:09
+  -0 06:49:27
+  -0 02:57:52
+  -0 16:45:44
+  -0 21:30:57
+  -0 22:30:04
+  -0 01:56:51
+  -1 00:00:00
+  -1 04:50:38
+  -1 12:31:35
+  -1 12:47:53
+  -1 01:26:00
+  -1 20:58:11
+  -1 07:36:05
+  -1 15:43:49
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 04:25:09
+  -1 06:49:27
+  -1 02:57:52
+  -1 16:45:44
+  -1 21:30:57
+  -1 22:30:04
+  -1 01:56:51
+  -2 00:00:00
+  -2 04:50:38
+  -2 12:31:35
+  -2 12:47:53
+  -2 01:26:00
+  -2 20:58:11
+  -2 07:36:05
+  -2 15:43:49
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 04:25:09
+  -2 06:49:27
+  -2 02:57:52
+  -2 16:45:44
+  -2 21:30:57
+  -2 22:30:04
+  -2 01:56:51
+ -54 00:00:00
+ -54 04:50:38
+ -54 12:31:35
+ -54 12:47:53
+ -54 01:26:00
+ -54 20:58:11
+ -54 07:36:05
+ -54 15:43:49
+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
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+ -54 04:25:09
+ -54 06:49:27
+ -54 02:57:52
+ -54 16:45:44
+ -54 21:30:57
+ -54 22:30:04
+ -54 01:56:51
+   -681 00:00
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+   -681 12:31
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+   -681 01:26
+   -681 20:58
+   -681 07:36
+   -681 15:43
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 04:25
+   -681 06:49
+   -681 02:57
+   -681 16:45
+   -681 21:30
+   -681 22:30
+   -681 01:56
+])
+AT_CHECK([cat dtime13.out], [0], [dnl
+    0 00:00:00
+    0 04:50:38
+    0 12:31:35
+    0 12:47:53
+    0 01:26:00
+    0 20:58:11
+    0 07:36:05
+    0 15:43:49
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 04:25:09
+    0 06:49:27
+    0 02:57:52
+    0 16:45:44
+    0 21:30:57
+    0 22:30:04
+    0 01:56:51
+    1 00:00:00
+    1 04:50:38
+    1 12:31:35
+    1 12:47:53
+    1 01:26:00
+    1 20:58:11
+    1 07:36:05
+    1 15:43:49
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 04:25:09
+    1 06:49:27
+    1 02:57:52
+    1 16:45:44
+    1 21:30:57
+    1 22:30:04
+    1 01:56:51
+    2 00:00:00
+    2 04:50:38
+    2 12:31:35
+    2 12:47:53
+    2 01:26:00
+    2 20:58:11
+    2 07:36:05
+    2 15:43:49
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 04:25:09
+    2 06:49:27
+    2 02:57:52
+    2 16:45:44
+    2 21:30:57
+    2 22:30:04
+    2 01:56:51
+   54 00:00:00
+   54 04:50:38
+   54 12:31:35
+   54 12:47:53
+   54 01:26:00
+   54 20:58:11
+   54 07:36:05
+   54 15:43:49
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 04:25:09
+   54 06:49:27
+   54 02:57:52
+   54 16:45:44
+   54 21:30:57
+   54 22:30:04
+   54 01:56:51
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
+  681 20:58:11
+  681 07:36:05
+  681 15:43:49
+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
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+  681 04:25:09
+  681 06:49:27
+  681 02:57:52
+  681 16:45:44
+  681 21:30:57
+  681 22:30:04
+  681 01:56:51
+    0 00:00:00
+   -0 04:50:38
+   -0 12:31:35
+   -0 12:47:53
+   -0 01:26:00
+   -0 20:58:11
+   -0 07:36:05
+   -0 15:43:49
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 04:25:09
+   -0 06:49:27
+   -0 02:57:52
+   -0 16:45:44
+   -0 21:30:57
+   -0 22:30:04
+   -0 01:56:51
+   -1 00:00:00
+   -1 04:50:38
+   -1 12:31:35
+   -1 12:47:53
+   -1 01:26:00
+   -1 20:58:11
+   -1 07:36:05
+   -1 15:43:49
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 04:25:09
+   -1 06:49:27
+   -1 02:57:52
+   -1 16:45:44
+   -1 21:30:57
+   -1 22:30:04
+   -1 01:56:51
+   -2 00:00:00
+   -2 04:50:38
+   -2 12:31:35
+   -2 12:47:53
+   -2 01:26:00
+   -2 20:58:11
+   -2 07:36:05
+   -2 15:43:49
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 04:25:09
+   -2 06:49:27
+   -2 02:57:52
+   -2 16:45:44
+   -2 21:30:57
+   -2 22:30:04
+   -2 01:56:51
+  -54 00:00:00
+  -54 04:50:38
+  -54 12:31:35
+  -54 12:47:53
+  -54 01:26:00
+  -54 20:58:11
+  -54 07:36:05
+  -54 15:43:49
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 04:25:09
+  -54 06:49:27
+  -54 02:57:52
+  -54 16:45:44
+  -54 21:30:57
+  -54 22:30:04
+  -54 01:56:51
+ -681 00:00:00
+ -681 04:50:38
+ -681 12:31:35
+ -681 12:47:53
+ -681 01:26:00
+ -681 20:58:11
+ -681 07:36:05
+ -681 15:43:49
+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
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+ -681 04:25:09
+ -681 06:49:27
+ -681 02:57:52
+ -681 16:45:44
+ -681 21:30:57
+ -681 22:30:04
+ -681 01:56:51
+])
+AT_CHECK([cat dtime13.1.out], [0], [dnl
+  0 00:00:00.0
+  0 04:50:38.1
+  0 12:31:35.2
+  0 12:47:53.3
+  0 01:26:00.5
+  0 20:58:11.6
+  0 07:36:05.2
+  0 15:43:49.8
+  0 04:25:09.0
+  0 06:49:27.5
+  0 02:57:52.0
+  0 16:45:44.9
+  0 21:30:57.8
+  0 04:25:09.2
+  0 06:49:27.1
+  0 02:57:52.5
+  0 16:45:44.7
+  0 21:30:57.6
+  0 22:30:04.2
+  0 01:56:51.6
+  1 00:00:00.0
+  1 04:50:38.1
+  1 12:31:35.2
+  1 12:47:53.3
+  1 01:26:00.5
+  1 20:58:11.6
+  1 07:36:05.2
+  1 15:43:49.8
+  1 04:25:09.0
+  1 06:49:27.5
+  1 02:57:52.0
+  1 16:45:44.9
+  1 21:30:57.8
+  1 04:25:09.2
+  1 06:49:27.1
+  1 02:57:52.5
+  1 16:45:44.7
+  1 21:30:57.6
+  1 22:30:04.2
+  1 01:56:51.6
+  2 00:00:00.0
+  2 04:50:38.1
+  2 12:31:35.2
+  2 12:47:53.3
+  2 01:26:00.5
+  2 20:58:11.6
+  2 07:36:05.2
+  2 15:43:49.8
+  2 04:25:09.0
+  2 06:49:27.5
+  2 02:57:52.0
+  2 16:45:44.9
+  2 21:30:57.8
+  2 04:25:09.2
+  2 06:49:27.1
+  2 02:57:52.5
+  2 16:45:44.7
+  2 21:30:57.6
+  2 22:30:04.2
+  2 01:56:51.6
+ 54 00:00:00.0
+ 54 04:50:38.1
+ 54 12:31:35.2
+ 54 12:47:53.3
+ 54 01:26:00.5
+ 54 20:58:11.6
+ 54 07:36:05.2
+ 54 15:43:49.8
+ 54 04:25:09.0
+ 54 06:49:27.5
+ 54 02:57:52.0
+ 54 16:45:44.9
+ 54 21:30:57.8
+ 54 04:25:09.2
+ 54 06:49:27.1
+ 54 02:57:52.5
+ 54 16:45:44.7
+ 54 21:30:57.6
+ 54 22:30:04.2
+ 54 01:56:51.6
+  681 00:00:00
+  681 04:50:38
+  681 12:31:35
+  681 12:47:53
+  681 01:26:00
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+])
+AT_CHECK([cat dtime14.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime14.2.out], [0], [dnl
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+  -681 16:45:44
+  -681 21:30:57
+  -681 22:30:04
+  -681 01:56:51
+])
+AT_CHECK([cat dtime15.out], [0], [dnl
+      0 00:00:00
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+      0 12:31:35
+      0 12:47:53
+      0 01:26:00
+      0 20:58:11
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+      0 16:45:44
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+      0 04:25:09
+      0 06:49:27
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+      0 22:30:04
+      0 01:56:51
+      1 00:00:00
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+      1 04:25:09
+      1 06:49:27
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+      1 16:45:44
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+     54 00:00:00
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+     54 01:56:51
+    681 00:00:00
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+   -681 16:45:44
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+   -681 01:56:51
+])
+AT_CHECK([cat dtime15.1.out], [0], [dnl
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+    0 04:50:38.1
+    0 12:31:35.2
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+    2 16:45:44.7
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+    2 22:30:04.2
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+ -681 16:45:44.7
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+ -681 22:30:04.2
+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.2.out], [0], [dnl
+   0 00:00:00.00
+   0 04:50:38.12
+   0 12:31:35.23
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+ -681 16:45:44.7
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+ -681 01:56:51.6
+])
+AT_CHECK([cat dtime15.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime16.3.out], [0], [dnl
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+])
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+])
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+])
+AT_CHECK([cat dtime17.1.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.2.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.3.out], [0], [dnl
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+])
+AT_CHECK([cat dtime17.4.out], [0], [dnl
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+ -681 16:45:44.658
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+ -681 01:56:51.593
+])
+AT_CHECK([cat dtime17.5.out], [0], [dnl
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+  0 04:50:38.12301
+  0 12:31:35.23453
+  0 12:47:53.34505
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+  0 22:30:04.18347
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+ 54 00:00:00.00000
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+ -681 16:45:44.658
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+ -681 01:56:51.593
+])
+AT_CHECK([cat dtime18.out], [0], [dnl
+         0 00:00:00
+         0 04:50:38
+         0 12:31:35
+         0 12:47:53
+         0 01:26:00
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+      -681 01:56:51
diff --git a/rust/pspp/src/format/testdata/display/dtime8.txt b/rust/pspp/src/format/testdata/display/dtime8.txt
new file mode 100644
index 0000000000..412c74656e
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime8.txt
@@ -0,0 +1,1008 @@
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diff --git a/rust/pspp/src/format/testdata/display/dtime9.txt b/rust/pspp/src/format/testdata/display/dtime9.txt
new file mode 100644
index 0000000000..7fb1d16279
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/dtime9.txt
@@ -0,0 +1,1210 @@
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+    04:50:38.123
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+])
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+])
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+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.6.out], [0], [dnl
+ 00:00:00.000000
+ 04:50:38.123010
+ 12:31:35.234530
+ 12:47:53.345050
+ 01:26:00.456150
+ 20:58:11.566770
+ 07:36:05.189640
+ 15:43:49.831320
+ 04:25:09.012930
+ 06:49:27.523750
+ 02:57:52.015650
+ 16:45:44.865290
+ 21:30:57.820470
+ 04:25:09.153950
+ 06:49:27.105330
+ 02:57:52.482290
+ 16:45:44.658270
+ 21:30:57.582190
+ 22:30:04.183470
+ 01:56:51.593190
+ 24:00:00.000000
+ 28:50:38.123010
+ 36:31:35.234530
+ 36:47:53.345050
+ 25:26:00.456150
+ 44:58:11.566770
+ 31:36:05.189640
+ 39:43:49.831320
+ 28:25:09.012930
+ 30:49:27.523750
+ 26:57:52.015650
+ 40:45:44.865290
+ 45:30:57.820470
+ 28:25:09.153950
+ 30:49:27.105330
+ 26:57:52.482290
+ 40:45:44.658270
+ 45:30:57.582190
+ 46:30:04.183470
+ 25:56:51.593190
+ 48:00:00.000000
+ 52:50:38.123010
+ 60:31:35.234530
+ 60:47:53.345050
+ 49:26:00.456150
+ 68:58:11.566770
+ 55:36:05.189640
+ 63:43:49.831320
+ 52:25:09.012930
+ 54:49:27.523750
+ 50:57:52.015650
+ 64:45:44.865290
+ 69:30:57.820470
+ 52:25:09.153950
+ 54:49:27.105330
+ 50:57:52.482290
+ 64:45:44.658270
+ 69:30:57.582190
+ 70:30:04.183470
+ 49:56:51.593190
+ 1296:00:00.0000
+ 1300:50:38.1230
+ 1308:31:35.2345
+ 1308:47:53.3450
+ 1297:26:00.4561
+ 1316:58:11.5668
+ 1303:36:05.1896
+ 1311:43:49.8313
+ 1300:25:09.0129
+ 1302:49:27.5237
+ 1298:57:52.0157
+ 1312:45:44.8653
+ 1317:30:57.8205
+ 1300:25:09.1540
+ 1302:49:27.1053
+ 1298:57:52.4823
+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+ 00:00:00.000000
+ -04:50:38.12301
+ -12:31:35.23453
+ -12:47:53.34505
+ -01:26:00.45615
+ -20:58:11.56677
+ -07:36:05.18964
+ -15:43:49.83132
+ -04:25:09.01293
+ -06:49:27.52375
+ -02:57:52.01565
+ -16:45:44.86529
+ -21:30:57.82047
+ -04:25:09.15395
+ -06:49:27.10533
+ -02:57:52.48229
+ -16:45:44.65827
+ -21:30:57.58219
+ -22:30:04.18347
+ -01:56:51.59319
+ -24:00:00.00000
+ -28:50:38.12301
+ -36:31:35.23453
+ -36:47:53.34505
+ -25:26:00.45615
+ -44:58:11.56677
+ -31:36:05.18964
+ -39:43:49.83132
+ -28:25:09.01293
+ -30:49:27.52375
+ -26:57:52.01565
+ -40:45:44.86529
+ -45:30:57.82047
+ -28:25:09.15395
+ -30:49:27.10533
+ -26:57:52.48229
+ -40:45:44.65827
+ -45:30:57.58219
+ -46:30:04.18347
+ -25:56:51.59319
+ -48:00:00.00000
+ -52:50:38.12301
+ -60:31:35.23453
+ -60:47:53.34505
+ -49:26:00.45615
+ -68:58:11.56677
+ -55:36:05.18964
+ -63:43:49.83132
+ -52:25:09.01293
+ -54:49:27.52375
+ -50:57:52.01565
+ -64:45:44.86529
+ -69:30:57.82047
+ -52:25:09.15395
+ -54:49:27.10533
+ -50:57:52.48229
+ -64:45:44.65827
+ -69:30:57.58219
+ -70:30:04.18347
+ -49:56:51.59319
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat dtime8.out], [0], [dnl
+  0 00:00
+  0 04:50
+  0 12:31
+  0 12:47
+  0 01:26
+  0 20:58
+  0 07:36
+  0 15:43
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 04:25
+  0 06:49
+  0 02:57
+  0 16:45
+  0 21:30
+  0 22:30
+  0 01:56
+  1 00:00
+  1 04:50
+  1 12:31
+  1 12:47
+  1 01:26
+  1 20:58
+  1 07:36
+  1 15:43
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 04:25
+  1 06:49
+  1 02:57
+  1 16:45
+  1 21:30
+  1 22:30
+  1 01:56
+  2 00:00
+  2 04:50
+  2 12:31
+  2 12:47
+  2 01:26
+  2 20:58
+  2 07:36
+  2 15:43
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 04:25
+  2 06:49
+  2 02:57
+  2 16:45
+  2 21:30
+  2 22:30
+  2 01:56
+ 54 00:00
+ 54 04:50
+ 54 12:31
+ 54 12:47
+ 54 01:26
+ 54 20:58
+ 54 07:36
+ 54 15:43
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 04:25
+ 54 06:49
+ 54 02:57
+ 54 16:45
+ 54 21:30
+ 54 22:30
+ 54 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  0 00:00
+ -0 04:50
+ -0 12:31
+ -0 12:47
+ -0 01:26
+ -0 20:58
+ -0 07:36
+ -0 15:43
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 04:25
+ -0 06:49
+ -0 02:57
+ -0 16:45
+ -0 21:30
+ -0 22:30
+ -0 01:56
+ -1 00:00
+ -1 04:50
+ -1 12:31
+ -1 12:47
+ -1 01:26
+ -1 20:58
+ -1 07:36
+ -1 15:43
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 04:25
+ -1 06:49
+ -1 02:57
+ -1 16:45
+ -1 21:30
+ -1 22:30
+ -1 01:56
+ -2 00:00
+ -2 04:50
+ -2 12:31
+ -2 12:47
+ -2 01:26
+ -2 20:58
+ -2 07:36
+ -2 15:43
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 04:25
+ -2 06:49
+ -2 02:57
+ -2 16:45
+ -2 21:30
+ -2 22:30
+ -2 01:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat dtime9.out], [0], [dnl
+   0 00:00
+   0 04:50
+   0 12:31
+   0 12:47
+   0 01:26
+   0 20:58
+   0 07:36
+   0 15:43
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 04:25
+   0 06:49
+   0 02:57
+   0 16:45
+   0 21:30
+   0 22:30
+   0 01:56
+   1 00:00
+   1 04:50
+   1 12:31
+   1 12:47
+   1 01:26
+   1 20:58
+   1 07:36
+   1 15:43
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 04:25
+   1 06:49
+   1 02:57
+   1 16:45
+   1 21:30
+   1 22:30
+   1 01:56
+   2 00:00
+   2 04:50
+   2 12:31
+   2 12:47
+   2 01:26
+   2 20:58
+   2 07:36
+   2 15:43
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 04:25
+   2 06:49
+   2 02:57
+   2 16:45
+   2 21:30
+   2 22:30
+   2 01:56
+  54 00:00
+  54 04:50
+  54 12:31
+  54 12:47
+  54 01:26
+  54 20:58
+  54 07:36
+  54 15:43
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 04:25
+  54 06:49
+  54 02:57
+  54 16:45
+  54 21:30
+  54 22:30
+  54 01:56
+ 681 00:00
+ 681 04:50
+ 681 12:31
+ 681 12:47
+ 681 01:26
+ 681 20:58
+ 681 07:36
+ 681 15:43
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 04:25
+ 681 06:49
+ 681 02:57
+ 681 16:45
+ 681 21:30
+ 681 22:30
+ 681 01:56
+   0 00:00
+  -0 04:50
+  -0 12:31
+  -0 12:47
+  -0 01:26
+  -0 20:58
+  -0 07:36
+  -0 15:43
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 04:25
+  -0 06:49
+  -0 02:57
+  -0 16:45
+  -0 21:30
+  -0 22:30
+  -0 01:56
+  -1 00:00
+  -1 04:50
+  -1 12:31
+  -1 12:47
+  -1 01:26
+  -1 20:58
+  -1 07:36
+  -1 15:43
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 04:25
+  -1 06:49
+  -1 02:57
+  -1 16:45
+  -1 21:30
+  -1 22:30
+  -1 01:56
+  -2 00:00
+  -2 04:50
+  -2 12:31
+  -2 12:47
+  -2 01:26
+  -2 20:58
+  -2 07:36
+  -2 15:43
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 04:25
+  -2 06:49
+  -2 02:57
+  -2 16:45
+  -2 21:30
+  -2 22:30
+  -2 01:56
+ -54 00:00
+ -54 04:50
+ -54 12:31
+ -54 12:47
+ -54 01:26
+ -54 20:58
+ -54 07:36
+ -54 15:43
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 04:25
+ -54 06:49
+ -54 02:57
+ -54 16:45
+ -54 21:30
+ -54 22:30
+ -54 01:56
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
diff --git a/rust/pspp/src/format/testdata/display/mtime10.1.txt b/rust/pspp/src/format/testdata/display/mtime10.1.txt
new file mode 100644
index 0000000000..33f916e37b
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime10.1.txt
@@ -0,0 +1,200 @@
+    00:00.0
+   290:38.1
+   751:35.2
+   767:53.3
+    86:00.5
+  1258:11.6
+   456:05.2
+   943:49.8
+   265:09.0
+   409:27.5
+   177:52.0
+  1005:44.9
+  1290:57.8
+   265:09.2
+   409:27.1
+   177:52.5
+  1005:44.7
+  1290:57.6
+  1350:04.2
+   116:51.6
+  1440:00.0
+  1730:38.1
+  2191:35.2
+  2207:53.3
+  1526:00.5
+  2698:11.6
+  1896:05.2
+  2383:49.8
+  1705:09.0
+  1849:27.5
+  1617:52.0
+  2445:44.9
+  2730:57.8
+  1705:09.2
+  1849:27.1
+  1617:52.5
+  2445:44.7
+  2730:57.6
+  2790:04.2
+  1556:51.6
+  2880:00.0
+  3170:38.1
+  3631:35.2
+  3647:53.3
+  2966:00.5
+  4138:11.6
+  3336:05.2
+  3823:49.8
+  3145:09.0
+  3289:27.5
+  3057:52.0
+  3885:44.9
+  4170:57.8
+  3145:09.2
+  3289:27.1
+  3057:52.5
+  3885:44.7
+  4170:57.6
+  4230:04.2
+  2996:51.6
+ 77760:00.0
+ 78050:38.1
+ 78511:35.2
+ 78527:53.3
+ 77846:00.5
+ 79018:11.6
+ 78216:05.2
+ 78703:49.8
+ 78025:09.0
+ 78169:27.5
+ 77937:52.0
+ 78765:44.9
+ 79050:57.8
+ 78025:09.2
+ 78169:27.1
+ 77937:52.5
+ 78765:44.7
+ 79050:57.6
+ 79110:04.2
+ 77876:51.6
+  980640:00
+  980930:38
+  981391:35
+  981407:53
+  980726:00
+  981898:11
+  981096:05
+  981583:49
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  981990:04
+  980756:51
+    00:00.0
+  -290:38.1
+  -751:35.2
+  -767:53.3
+   -86:00.5
+ -1258:11.6
+  -456:05.2
+  -943:49.8
+  -265:09.0
+  -409:27.5
+  -177:52.0
+ -1005:44.9
+ -1290:57.8
+  -265:09.2
+  -409:27.1
+  -177:52.5
+ -1005:44.7
+ -1290:57.6
+ -1350:04.2
+  -116:51.6
+ -1440:00.0
+ -1730:38.1
+ -2191:35.2
+ -2207:53.3
+ -1526:00.5
+ -2698:11.6
+ -1896:05.2
+ -2383:49.8
+ -1705:09.0
+ -1849:27.5
+ -1617:52.0
+ -2445:44.9
+ -2730:57.8
+ -1705:09.2
+ -1849:27.1
+ -1617:52.5
+ -2445:44.7
+ -2730:57.6
+ -2790:04.2
+ -1556:51.6
+ -2880:00.0
+ -3170:38.1
+ -3631:35.2
+ -3647:53.3
+ -2966:00.5
+ -4138:11.6
+ -3336:05.2
+ -3823:49.8
+ -3145:09.0
+ -3289:27.5
+ -3057:52.0
+ -3885:44.9
+ -4170:57.8
+ -3145:09.2
+ -3289:27.1
+ -3057:52.5
+ -3885:44.7
+ -4170:57.6
+ -4230:04.2
+ -2996:51.6
+  -77760:00
+  -78050:38
+  -78511:35
+  -78527:53
+  -77846:00
+  -79018:11
+  -78216:05
+  -78703:49
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -79110:04
+  -77876:51
+ -980640:00
+ -980930:38
+ -981391:35
+ -981407:53
+ -980726:00
+ -981898:11
+ -981096:05
+ -981583:49
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -981990:04
+ -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime10.2.txt b/rust/pspp/src/format/testdata/display/mtime10.2.txt
new file mode 100644
index 0000000000..4bfbb0f9d7
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime10.2.txt
@@ -0,0 +1,200 @@
+   00:00.00
+  290:38.12
+  751:35.23
+  767:53.35
+   86:00.46
+ 1258:11.57
+  456:05.19
+  943:49.83
+  265:09.01
+  409:27.52
+  177:52.02
+ 1005:44.87
+ 1290:57.82
+  265:09.15
+  409:27.11
+  177:52.48
+ 1005:44.66
+ 1290:57.58
+ 1350:04.18
+  116:51.59
+ 1440:00.00
+ 1730:38.12
+ 2191:35.23
+ 2207:53.35
+ 1526:00.46
+ 2698:11.57
+ 1896:05.19
+ 2383:49.83
+ 1705:09.01
+ 1849:27.52
+ 1617:52.02
+ 2445:44.87
+ 2730:57.82
+ 1705:09.15
+ 1849:27.11
+ 1617:52.48
+ 2445:44.66
+ 2730:57.58
+ 2790:04.18
+ 1556:51.59
+ 2880:00.00
+ 3170:38.12
+ 3631:35.23
+ 3647:53.35
+ 2966:00.46
+ 4138:11.57
+ 3336:05.19
+ 3823:49.83
+ 3145:09.01
+ 3289:27.52
+ 3057:52.02
+ 3885:44.87
+ 4170:57.82
+ 3145:09.15
+ 3289:27.11
+ 3057:52.48
+ 3885:44.66
+ 4170:57.58
+ 4230:04.18
+ 2996:51.59
+ 77760:00.0
+ 78050:38.1
+ 78511:35.2
+ 78527:53.3
+ 77846:00.5
+ 79018:11.6
+ 78216:05.2
+ 78703:49.8
+ 78025:09.0
+ 78169:27.5
+ 77937:52.0
+ 78765:44.9
+ 79050:57.8
+ 78025:09.2
+ 78169:27.1
+ 77937:52.5
+ 78765:44.7
+ 79050:57.6
+ 79110:04.2
+ 77876:51.6
+  980640:00
+  980930:38
+  981391:35
+  981407:53
+  980726:00
+  981898:11
+  981096:05
+  981583:49
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  981990:04
+  980756:51
+   00:00.00
+ -290:38.12
+ -751:35.23
+ -767:53.35
+  -86:00.46
+ -1258:11.6
+ -456:05.19
+ -943:49.83
+ -265:09.01
+ -409:27.52
+ -177:52.02
+ -1005:44.9
+ -1290:57.8
+ -265:09.15
+ -409:27.11
+ -177:52.48
+ -1005:44.7
+ -1290:57.6
+ -1350:04.2
+ -116:51.59
+ -1440:00.0
+ -1730:38.1
+ -2191:35.2
+ -2207:53.3
+ -1526:00.5
+ -2698:11.6
+ -1896:05.2
+ -2383:49.8
+ -1705:09.0
+ -1849:27.5
+ -1617:52.0
+ -2445:44.9
+ -2730:57.8
+ -1705:09.2
+ -1849:27.1
+ -1617:52.5
+ -2445:44.7
+ -2730:57.6
+ -2790:04.2
+ -1556:51.6
+ -2880:00.0
+ -3170:38.1
+ -3631:35.2
+ -3647:53.3
+ -2966:00.5
+ -4138:11.6
+ -3336:05.2
+ -3823:49.8
+ -3145:09.0
+ -3289:27.5
+ -3057:52.0
+ -3885:44.9
+ -4170:57.8
+ -3145:09.2
+ -3289:27.1
+ -3057:52.5
+ -3885:44.7
+ -4170:57.6
+ -4230:04.2
+ -2996:51.6
+  -77760:00
+  -78050:38
+  -78511:35
+  -78527:53
+  -77846:00
+  -79018:11
+  -78216:05
+  -78703:49
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -79110:04
+  -77876:51
+ -980640:00
+ -980930:38
+ -981391:35
+ -981407:53
+ -980726:00
+ -981898:11
+ -981096:05
+ -981583:49
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -981990:04
+ -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime10.3.txt b/rust/pspp/src/format/testdata/display/mtime10.3.txt
new file mode 100644
index 0000000000..2ad2d7544e
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime10.3.txt
@@ -0,0 +1,200 @@
+  00:00.000
+ 290:38.123
+ 751:35.235
+ 767:53.345
+  86:00.456
+ 1258:11.57
+ 456:05.190
+ 943:49.831
+ 265:09.013
+ 409:27.524
+ 177:52.016
+ 1005:44.87
+ 1290:57.82
+ 265:09.154
+ 409:27.105
+ 177:52.482
+ 1005:44.66
+ 1290:57.58
+ 1350:04.18
+ 116:51.593
+ 1440:00.00
+ 1730:38.12
+ 2191:35.23
+ 2207:53.35
+ 1526:00.46
+ 2698:11.57
+ 1896:05.19
+ 2383:49.83
+ 1705:09.01
+ 1849:27.52
+ 1617:52.02
+ 2445:44.87
+ 2730:57.82
+ 1705:09.15
+ 1849:27.11
+ 1617:52.48
+ 2445:44.66
+ 2730:57.58
+ 2790:04.18
+ 1556:51.59
+ 2880:00.00
+ 3170:38.12
+ 3631:35.23
+ 3647:53.35
+ 2966:00.46
+ 4138:11.57
+ 3336:05.19
+ 3823:49.83
+ 3145:09.01
+ 3289:27.52
+ 3057:52.02
+ 3885:44.87
+ 4170:57.82
+ 3145:09.15
+ 3289:27.11
+ 3057:52.48
+ 3885:44.66
+ 4170:57.58
+ 4230:04.18
+ 2996:51.59
+ 77760:00.0
+ 78050:38.1
+ 78511:35.2
+ 78527:53.3
+ 77846:00.5
+ 79018:11.6
+ 78216:05.2
+ 78703:49.8
+ 78025:09.0
+ 78169:27.5
+ 77937:52.0
+ 78765:44.9
+ 79050:57.8
+ 78025:09.2
+ 78169:27.1
+ 77937:52.5
+ 78765:44.7
+ 79050:57.6
+ 79110:04.2
+ 77876:51.6
+  980640:00
+  980930:38
+  981391:35
+  981407:53
+  980726:00
+  981898:11
+  981096:05
+  981583:49
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  981990:04
+  980756:51
+  00:00.000
+ -290:38.12
+ -751:35.23
+ -767:53.35
+ -86:00.456
+ -1258:11.6
+ -456:05.19
+ -943:49.83
+ -265:09.01
+ -409:27.52
+ -177:52.02
+ -1005:44.9
+ -1290:57.8
+ -265:09.15
+ -409:27.11
+ -177:52.48
+ -1005:44.7
+ -1290:57.6
+ -1350:04.2
+ -116:51.59
+ -1440:00.0
+ -1730:38.1
+ -2191:35.2
+ -2207:53.3
+ -1526:00.5
+ -2698:11.6
+ -1896:05.2
+ -2383:49.8
+ -1705:09.0
+ -1849:27.5
+ -1617:52.0
+ -2445:44.9
+ -2730:57.8
+ -1705:09.2
+ -1849:27.1
+ -1617:52.5
+ -2445:44.7
+ -2730:57.6
+ -2790:04.2
+ -1556:51.6
+ -2880:00.0
+ -3170:38.1
+ -3631:35.2
+ -3647:53.3
+ -2966:00.5
+ -4138:11.6
+ -3336:05.2
+ -3823:49.8
+ -3145:09.0
+ -3289:27.5
+ -3057:52.0
+ -3885:44.9
+ -4170:57.8
+ -3145:09.2
+ -3289:27.1
+ -3057:52.5
+ -3885:44.7
+ -4170:57.6
+ -4230:04.2
+ -2996:51.6
+  -77760:00
+  -78050:38
+  -78511:35
+  -78527:53
+  -77846:00
+  -79018:11
+  -78216:05
+  -78703:49
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -79110:04
+  -77876:51
+ -980640:00
+ -980930:38
+ -981391:35
+ -981407:53
+ -980726:00
+ -981898:11
+ -981096:05
+ -981583:49
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -981990:04
+ -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime10.4.txt b/rust/pspp/src/format/testdata/display/mtime10.4.txt
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/rust/pspp/src/format/testdata/display/mtime10.txt b/rust/pspp/src/format/testdata/display/mtime10.txt
new file mode 100644
index 0000000000..8586e16ef6
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime10.txt
@@ -0,0 +1,200 @@
+      00:00
+     290:38
+     751:35
+     767:53
+      86:00
+    1258:11
+     456:05
+     943:49
+     265:09
+     409:27
+     177:52
+    1005:44
+    1290:57
+     265:09
+     409:27
+     177:52
+    1005:44
+    1290:57
+    1350:04
+     116:51
+    1440:00
+    1730:38
+    2191:35
+    2207:53
+    1526:00
+    2698:11
+    1896:05
+    2383:49
+    1705:09
+    1849:27
+    1617:52
+    2445:44
+    2730:57
+    1705:09
+    1849:27
+    1617:52
+    2445:44
+    2730:57
+    2790:04
+    1556:51
+    2880:00
+    3170:38
+    3631:35
+    3647:53
+    2966:00
+    4138:11
+    3336:05
+    3823:49
+    3145:09
+    3289:27
+    3057:52
+    3885:44
+    4170:57
+    3145:09
+    3289:27
+    3057:52
+    3885:44
+    4170:57
+    4230:04
+    2996:51
+   77760:00
+   78050:38
+   78511:35
+   78527:53
+   77846:00
+   79018:11
+   78216:05
+   78703:49
+   78025:09
+   78169:27
+   77937:52
+   78765:44
+   79050:57
+   78025:09
+   78169:27
+   77937:52
+   78765:44
+   79050:57
+   79110:04
+   77876:51
+  980640:00
+  980930:38
+  981391:35
+  981407:53
+  980726:00
+  981898:11
+  981096:05
+  981583:49
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  980905:09
+  981049:27
+  980817:52
+  981645:44
+  981930:57
+  981990:04
+  980756:51
+      00:00
+    -290:38
+    -751:35
+    -767:53
+     -86:00
+   -1258:11
+    -456:05
+    -943:49
+    -265:09
+    -409:27
+    -177:52
+   -1005:44
+   -1290:57
+    -265:09
+    -409:27
+    -177:52
+   -1005:44
+   -1290:57
+   -1350:04
+    -116:51
+   -1440:00
+   -1730:38
+   -2191:35
+   -2207:53
+   -1526:00
+   -2698:11
+   -1896:05
+   -2383:49
+   -1705:09
+   -1849:27
+   -1617:52
+   -2445:44
+   -2730:57
+   -1705:09
+   -1849:27
+   -1617:52
+   -2445:44
+   -2730:57
+   -2790:04
+   -1556:51
+   -2880:00
+   -3170:38
+   -3631:35
+   -3647:53
+   -2966:00
+   -4138:11
+   -3336:05
+   -3823:49
+   -3145:09
+   -3289:27
+   -3057:52
+   -3885:44
+   -4170:57
+   -3145:09
+   -3289:27
+   -3057:52
+   -3885:44
+   -4170:57
+   -4230:04
+   -2996:51
+  -77760:00
+  -78050:38
+  -78511:35
+  -78527:53
+  -77846:00
+  -79018:11
+  -78216:05
+  -78703:49
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -78025:09
+  -78169:27
+  -77937:52
+  -78765:44
+  -79050:57
+  -79110:04
+  -77876:51
+ -980640:00
+ -980930:38
+ -981391:35
+ -981407:53
+ -980726:00
+ -981898:11
+ -981096:05
+ -981583:49
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -980905:09
+ -981049:27
+ -980817:52
+ -981645:44
+ -981930:57
+ -981990:04
+ -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.1.txt b/rust/pspp/src/format/testdata/display/mtime11.1.txt
new file mode 100644
index 0000000000..8391bab1ca
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.1.txt
@@ -0,0 +1,404 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.2.txt b/rust/pspp/src/format/testdata/display/mtime11.2.txt
new file mode 100644
index 0000000000..75162ad1f1
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.2.txt
@@ -0,0 +1,606 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.3.txt b/rust/pspp/src/format/testdata/display/mtime11.3.txt
new file mode 100644
index 0000000000..a162504d0a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.3.txt
@@ -0,0 +1,808 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.3.out], [0], [dnl
+   00:00.000
+  290:38.123
+  751:35.235
+  767:53.345
+   86:00.456
+ 1258:11.567
+  456:05.190
+  943:49.831
+  265:09.013
+  409:27.524
+  177:52.016
+ 1005:44.865
+ 1290:57.820
+  265:09.154
+  409:27.105
+  177:52.482
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+  116:51.593
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
+ 2698:11.567
+ 1896:05.190
+ 2383:49.831
+ 1705:09.013
+ 1849:27.524
+ 1617:52.016
+ 2445:44.865
+ 2730:57.820
+ 1705:09.154
+ 1849:27.105
+ 1617:52.482
+ 2445:44.658
+ 2730:57.582
+ 2790:04.183
+ 1556:51.593
+ 2880:00.000
+ 3170:38.123
+ 3631:35.235
+ 3647:53.345
+ 2966:00.456
+ 4138:11.567
+ 3336:05.190
+ 3823:49.831
+ 3145:09.013
+ 3289:27.524
+ 3057:52.016
+ 3885:44.865
+ 4170:57.820
+ 3145:09.154
+ 3289:27.105
+ 3057:52.482
+ 3885:44.658
+ 4170:57.582
+ 4230:04.183
+ 2996:51.593
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+   00:00.000
+ -290:38.123
+ -751:35.235
+ -767:53.345
+  -86:00.456
+ -1258:11.57
+ -456:05.190
+ -943:49.831
+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.4.txt b/rust/pspp/src/format/testdata/display/mtime11.4.txt
new file mode 100644
index 0000000000..0c5ada42f5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.4.txt
@@ -0,0 +1,1010 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
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+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.5.txt b/rust/pspp/src/format/testdata/display/mtime11.5.txt
new file mode 100644
index 0000000000..410effdfd1
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.5.txt
@@ -0,0 +1,1212 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.3.out], [0], [dnl
+   00:00.000
+  290:38.123
+  751:35.235
+  767:53.345
+   86:00.456
+ 1258:11.567
+  456:05.190
+  943:49.831
+  265:09.013
+  409:27.524
+  177:52.016
+ 1005:44.865
+ 1290:57.820
+  265:09.154
+  409:27.105
+  177:52.482
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+  116:51.593
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
+ 2698:11.567
+ 1896:05.190
+ 2383:49.831
+ 1705:09.013
+ 1849:27.524
+ 1617:52.016
+ 2445:44.865
+ 2730:57.820
+ 1705:09.154
+ 1849:27.105
+ 1617:52.482
+ 2445:44.658
+ 2730:57.582
+ 2790:04.183
+ 1556:51.593
+ 2880:00.000
+ 3170:38.123
+ 3631:35.235
+ 3647:53.345
+ 2966:00.456
+ 4138:11.567
+ 3336:05.190
+ 3823:49.831
+ 3145:09.013
+ 3289:27.524
+ 3057:52.016
+ 3885:44.865
+ 4170:57.820
+ 3145:09.154
+ 3289:27.105
+ 3057:52.482
+ 3885:44.658
+ 4170:57.582
+ 4230:04.183
+ 2996:51.593
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+   00:00.000
+ -290:38.123
+ -751:35.235
+ -767:53.345
+  -86:00.456
+ -1258:11.57
+ -456:05.190
+ -943:49.831
+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
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+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.4.out], [0], [dnl
+  00:00.0000
+ 290:38.1230
+ 751:35.2345
+ 767:53.3451
+  86:00.4561
+ 1258:11.567
+ 456:05.1896
+ 943:49.8313
+ 265:09.0129
+ 409:27.5238
+ 177:52.0156
+ 1005:44.865
+ 1290:57.820
+ 265:09.1539
+ 409:27.1053
+ 177:52.4823
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+ 116:51.5932
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
+ 2698:11.567
+ 1896:05.190
+ 2383:49.831
+ 1705:09.013
+ 1849:27.524
+ 1617:52.016
+ 2445:44.865
+ 2730:57.820
+ 1705:09.154
+ 1849:27.105
+ 1617:52.482
+ 2445:44.658
+ 2730:57.582
+ 2790:04.183
+ 1556:51.593
+ 2880:00.000
+ 3170:38.123
+ 3631:35.235
+ 3647:53.345
+ 2966:00.456
+ 4138:11.567
+ 3336:05.190
+ 3823:49.831
+ 3145:09.013
+ 3289:27.524
+ 3057:52.016
+ 3885:44.865
+ 4170:57.820
+ 3145:09.154
+ 3289:27.105
+ 3057:52.482
+ 3885:44.658
+ 4170:57.582
+ 4230:04.183
+ 2996:51.593
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+  00:00.0000
+ -290:38.123
+ -751:35.235
+ -767:53.345
+ -86:00.4561
+ -1258:11.57
+ -456:05.190
+ -943:49.831
+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.5.out], [0], [dnl
+ 00:00.00000
+ 290:38.1230
+ 751:35.2345
+ 767:53.3451
+ 86:00.45615
+ 1258:11.567
+ 456:05.1896
+ 943:49.8313
+ 265:09.0129
+ 409:27.5238
+ 177:52.0156
+ 1005:44.865
+ 1290:57.820
+ 265:09.1539
+ 409:27.1053
+ 177:52.4823
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+ 116:51.5932
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
+ 2698:11.567
+ 1896:05.190
+ 2383:49.831
+ 1705:09.013
+ 1849:27.524
+ 1617:52.016
+ 2445:44.865
+ 2730:57.820
+ 1705:09.154
+ 1849:27.105
+ 1617:52.482
+ 2445:44.658
+ 2730:57.582
+ 2790:04.183
+ 1556:51.593
+ 2880:00.000
+ 3170:38.123
+ 3631:35.235
+ 3647:53.345
+ 2966:00.456
+ 4138:11.567
+ 3336:05.190
+ 3823:49.831
+ 3145:09.013
+ 3289:27.524
+ 3057:52.016
+ 3885:44.865
+ 4170:57.820
+ 3145:09.154
+ 3289:27.105
+ 3057:52.482
+ 3885:44.658
+ 4170:57.582
+ 4230:04.183
+ 2996:51.593
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+ 00:00.00000
+ -290:38.123
+ -751:35.235
+ -767:53.345
+ -86:00.4561
+ -1258:11.57
+ -456:05.190
+ -943:49.831
+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime11.txt b/rust/pspp/src/format/testdata/display/mtime11.txt
new file mode 100644
index 0000000000..45e4f118ba
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime11.txt
@@ -0,0 +1,202 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
diff --git a/rust/pspp/src/format/testdata/display/mtime12.5.txt b/rust/pspp/src/format/testdata/display/mtime12.5.txt
new file mode 100644
index 0000000000..d685f7b2e0
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime12.5.txt
@@ -0,0 +1,1414 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
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+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime12.5.out], [0], [dnl
+  00:00.00000
+ 290:38.12301
+ 751:35.23453
+ 767:53.34505
+  86:00.45615
+ 1258:11.5668
+ 456:05.18964
+ 943:49.83132
+ 265:09.01293
+ 409:27.52375
+ 177:52.01565
+ 1005:44.8653
+ 1290:57.8205
+ 265:09.15395
+ 409:27.10533
+ 177:52.48229
+ 1005:44.6583
+ 1290:57.5822
+ 1350:04.1835
+ 116:51.59319
+ 1440:00.0000
+ 1730:38.1230
+ 2191:35.2345
+ 2207:53.3451
+ 1526:00.4561
+ 2698:11.5668
+ 1896:05.1896
+ 2383:49.8313
+ 1705:09.0129
+ 1849:27.5237
+ 1617:52.0157
+ 2445:44.8653
+ 2730:57.8205
+ 1705:09.1540
+ 1849:27.1053
+ 1617:52.4823
+ 2445:44.6583
+ 2730:57.5822
+ 2790:04.1835
+ 1556:51.5932
+ 2880:00.0000
+ 3170:38.1230
+ 3631:35.2345
+ 3647:53.3451
+ 2966:00.4562
+ 4138:11.5668
+ 3336:05.1896
+ 3823:49.8313
+ 3145:09.0129
+ 3289:27.5237
+ 3057:52.0156
+ 3885:44.8653
+ 4170:57.8205
+ 3145:09.1540
+ 3289:27.1053
+ 3057:52.4823
+ 3885:44.6583
+ 4170:57.5822
+ 4230:04.1835
+ 2996:51.5932
+ 77760:00.000
+ 78050:38.123
+ 78511:35.235
+ 78527:53.345
+ 77846:00.456
+ 79018:11.567
+ 78216:05.190
+ 78703:49.831
+ 78025:09.013
+ 78169:27.524
+ 77937:52.016
+ 78765:44.865
+ 79050:57.820
+ 78025:09.154
+ 78169:27.105
+ 77937:52.482
+ 78765:44.658
+ 79050:57.582
+ 79110:04.183
+ 77876:51.593
+ 980640:00.00
+ 980930:38.12
+ 981391:35.23
+ 981407:53.35
+ 980726:00.46
+ 981898:11.57
+ 981096:05.19
+ 981583:49.83
+ 980905:09.01
+ 981049:27.52
+ 980817:52.02
+ 981645:44.87
+ 981930:57.82
+ 980905:09.15
+ 981049:27.11
+ 980817:52.48
+ 981645:44.66
+ 981930:57.58
+ 981990:04.18
+ 980756:51.59
+  00:00.00000
+ -290:38.1230
+ -751:35.2345
+ -767:53.3451
+ -86:00.45615
+ -1258:11.567
+ -456:05.1896
+ -943:49.8313
+ -265:09.0129
+ -409:27.5238
+ -177:52.0156
+ -1005:44.865
+ -1290:57.820
+ -265:09.1539
+ -409:27.1053
+ -177:52.4823
+ -1005:44.658
+ -1290:57.582
+ -1350:04.183
+ -116:51.5932
+ -1440:00.000
+ -1730:38.123
+ -2191:35.235
+ -2207:53.345
+ -1526:00.456
+ -2698:11.567
+ -1896:05.190
+ -2383:49.831
+ -1705:09.013
+ -1849:27.524
+ -1617:52.016
+ -2445:44.865
+ -2730:57.820
+ -1705:09.154
+ -1849:27.105
+ -1617:52.482
+ -2445:44.658
+ -2730:57.582
+ -2790:04.183
+ -1556:51.593
+ -2880:00.000
+ -3170:38.123
+ -3631:35.235
+ -3647:53.345
+ -2966:00.456
+ -4138:11.567
+ -3336:05.190
+ -3823:49.831
+ -3145:09.013
+ -3289:27.524
+ -3057:52.016
+ -3885:44.865
+ -4170:57.820
+ -3145:09.154
+ -3289:27.105
+ -3057:52.482
+ -3885:44.658
+ -4170:57.582
+ -4230:04.183
+ -2996:51.593
+ -77760:00.00
+ -78050:38.12
+ -78511:35.23
+ -78527:53.35
+ -77846:00.46
+ -79018:11.57
+ -78216:05.19
+ -78703:49.83
+ -78025:09.01
+ -78169:27.52
+ -77937:52.02
+ -78765:44.87
+ -79050:57.82
+ -78025:09.15
+ -78169:27.11
+ -77937:52.48
+ -78765:44.66
+ -79050:57.58
+ -79110:04.18
+ -77876:51.59
+ -980640:00.0
+ -980930:38.1
+ -981391:35.2
+ -981407:53.3
+ -980726:00.5
+ -981898:11.6
+ -981096:05.2
+ -981583:49.8
+ -980905:09.0
+ -981049:27.5
+ -980817:52.0
+ -981645:44.9
+ -981930:57.8
+ -980905:09.2
+ -981049:27.1
+ -980817:52.5
+ -981645:44.7
+ -981930:57.6
+ -981990:04.2
+ -980756:51.6
diff --git a/rust/pspp/src/format/testdata/display/mtime13.5.txt b/rust/pspp/src/format/testdata/display/mtime13.5.txt
new file mode 100644
index 0000000000..c16473aba5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime13.5.txt
@@ -0,0 +1,1616 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
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+ -78216:05.19
+ -78703:49.83
+ -78025:09.01
+ -78169:27.52
+ -77937:52.02
+ -78765:44.87
+ -79050:57.82
+ -78025:09.15
+ -78169:27.11
+ -77937:52.48
+ -78765:44.66
+ -79050:57.58
+ -79110:04.18
+ -77876:51.59
+ -980640:00.0
+ -980930:38.1
+ -981391:35.2
+ -981407:53.3
+ -980726:00.5
+ -981898:11.6
+ -981096:05.2
+ -981583:49.8
+ -980905:09.0
+ -981049:27.5
+ -980817:52.0
+ -981645:44.9
+ -981930:57.8
+ -980905:09.2
+ -981049:27.1
+ -980817:52.5
+ -981645:44.7
+ -981930:57.6
+ -981990:04.2
+ -980756:51.6
+])
+AT_CHECK([cat mtime13.5.out], [0], [dnl
+   00:00.00000
+  290:38.12301
+  751:35.23453
+  767:53.34505
+   86:00.45615
+ 1258:11.56677
+  456:05.18964
+  943:49.83132
+  265:09.01293
+  409:27.52375
+  177:52.01565
+ 1005:44.86529
+ 1290:57.82047
+  265:09.15395
+  409:27.10533
+  177:52.48229
+ 1005:44.65827
+ 1290:57.58219
+ 1350:04.18347
+  116:51.59319
+ 1440:00.00000
+ 1730:38.12301
+ 2191:35.23453
+ 2207:53.34505
+ 1526:00.45615
+ 2698:11.56677
+ 1896:05.18964
+ 2383:49.83132
+ 1705:09.01293
+ 1849:27.52375
+ 1617:52.01565
+ 2445:44.86529
+ 2730:57.82047
+ 1705:09.15395
+ 1849:27.10533
+ 1617:52.48229
+ 2445:44.65827
+ 2730:57.58219
+ 2790:04.18347
+ 1556:51.59319
+ 2880:00.00000
+ 3170:38.12301
+ 3631:35.23453
+ 3647:53.34505
+ 2966:00.45615
+ 4138:11.56677
+ 3336:05.18964
+ 3823:49.83132
+ 3145:09.01293
+ 3289:27.52375
+ 3057:52.01565
+ 3885:44.86529
+ 4170:57.82047
+ 3145:09.15395
+ 3289:27.10533
+ 3057:52.48229
+ 3885:44.65827
+ 4170:57.58219
+ 4230:04.18347
+ 2996:51.59319
+ 77760:00.0000
+ 78050:38.1230
+ 78511:35.2345
+ 78527:53.3450
+ 77846:00.4561
+ 79018:11.5668
+ 78216:05.1896
+ 78703:49.8313
+ 78025:09.0129
+ 78169:27.5237
+ 77937:52.0157
+ 78765:44.8653
+ 79050:57.8205
+ 78025:09.1540
+ 78169:27.1053
+ 77937:52.4823
+ 78765:44.6583
+ 79050:57.5822
+ 79110:04.1835
+ 77876:51.5932
+ 980640:00.000
+ 980930:38.123
+ 981391:35.235
+ 981407:53.345
+ 980726:00.456
+ 981898:11.567
+ 981096:05.190
+ 981583:49.831
+ 980905:09.013
+ 981049:27.524
+ 980817:52.016
+ 981645:44.865
+ 981930:57.820
+ 980905:09.154
+ 981049:27.105
+ 980817:52.482
+ 981645:44.658
+ 981930:57.582
+ 981990:04.183
+ 980756:51.593
+   00:00.00000
+ -290:38.12301
+ -751:35.23453
+ -767:53.34505
+  -86:00.45615
+ -1258:11.5668
+ -456:05.18964
+ -943:49.83132
+ -265:09.01293
+ -409:27.52375
+ -177:52.01565
+ -1005:44.8653
+ -1290:57.8205
+ -265:09.15395
+ -409:27.10533
+ -177:52.48229
+ -1005:44.6583
+ -1290:57.5822
+ -1350:04.1835
+ -116:51.59319
+ -1440:00.0000
+ -1730:38.1230
+ -2191:35.2345
+ -2207:53.3451
+ -1526:00.4561
+ -2698:11.5668
+ -1896:05.1896
+ -2383:49.8313
+ -1705:09.0129
+ -1849:27.5237
+ -1617:52.0157
+ -2445:44.8653
+ -2730:57.8205
+ -1705:09.1540
+ -1849:27.1053
+ -1617:52.4823
+ -2445:44.6583
+ -2730:57.5822
+ -2790:04.1835
+ -1556:51.5932
+ -2880:00.0000
+ -3170:38.1230
+ -3631:35.2345
+ -3647:53.3451
+ -2966:00.4562
+ -4138:11.5668
+ -3336:05.1896
+ -3823:49.8313
+ -3145:09.0129
+ -3289:27.5237
+ -3057:52.0156
+ -3885:44.8653
+ -4170:57.8205
+ -3145:09.1540
+ -3289:27.1053
+ -3057:52.4823
+ -3885:44.6583
+ -4170:57.5822
+ -4230:04.1835
+ -2996:51.5932
+ -77760:00.000
+ -78050:38.123
+ -78511:35.235
+ -78527:53.345
+ -77846:00.456
+ -79018:11.567
+ -78216:05.190
+ -78703:49.831
+ -78025:09.013
+ -78169:27.524
+ -77937:52.016
+ -78765:44.865
+ -79050:57.820
+ -78025:09.154
+ -78169:27.105
+ -77937:52.482
+ -78765:44.658
+ -79050:57.582
+ -79110:04.183
+ -77876:51.593
+ -980640:00.00
+ -980930:38.12
+ -981391:35.23
+ -981407:53.35
+ -980726:00.46
+ -981898:11.57
+ -981096:05.19
+ -981583:49.83
+ -980905:09.01
+ -981049:27.52
+ -980817:52.02
+ -981645:44.87
+ -981930:57.82
+ -980905:09.15
+ -981049:27.11
+ -980817:52.48
+ -981645:44.66
+ -981930:57.58
+ -981990:04.18
+ -980756:51.59
diff --git a/rust/pspp/src/format/testdata/display/mtime14.5.txt b/rust/pspp/src/format/testdata/display/mtime14.5.txt
new file mode 100644
index 0000000000..123a935846
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime14.5.txt
@@ -0,0 +1,1818 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
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+  265:09.01293
+  409:27.52375
+  177:52.01565
+ 1005:44.86529
+ 1290:57.82047
+  265:09.15395
+  409:27.10533
+  177:52.48229
+ 1005:44.65827
+ 1290:57.58219
+ 1350:04.18347
+  116:51.59319
+ 1440:00.00000
+ 1730:38.12301
+ 2191:35.23453
+ 2207:53.34505
+ 1526:00.45615
+ 2698:11.56677
+ 1896:05.18964
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+ 1617:52.01565
+ 2445:44.86529
+ 2730:57.82047
+ 1705:09.15395
+ 1849:27.10533
+ 1617:52.48229
+ 2445:44.65827
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+ 2790:04.18347
+ 1556:51.59319
+ 2880:00.00000
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+ 3631:35.23453
+ 3647:53.34505
+ 2966:00.45615
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+ 3336:05.18964
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+ 2996:51.59319
+ 77760:00.0000
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+ 77846:00.4561
+ 79018:11.5668
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+ 78703:49.8313
+ 78025:09.0129
+ 78169:27.5237
+ 77937:52.0157
+ 78765:44.8653
+ 79050:57.8205
+ 78025:09.1540
+ 78169:27.1053
+ 77937:52.4823
+ 78765:44.6583
+ 79050:57.5822
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+ 77876:51.5932
+ 980640:00.000
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+ 981930:57.820
+ 980905:09.154
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+ 980817:52.482
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+   00:00.00000
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+  -86:00.45615
+ -1258:11.5668
+ -456:05.18964
+ -943:49.83132
+ -265:09.01293
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+ -177:52.01565
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+ -1290:57.8205
+ -265:09.15395
+ -409:27.10533
+ -177:52.48229
+ -1005:44.6583
+ -1290:57.5822
+ -1350:04.1835
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+ -1440:00.0000
+ -1730:38.1230
+ -2191:35.2345
+ -2207:53.3451
+ -1526:00.4561
+ -2698:11.5668
+ -1896:05.1896
+ -2383:49.8313
+ -1705:09.0129
+ -1849:27.5237
+ -1617:52.0157
+ -2445:44.8653
+ -2730:57.8205
+ -1705:09.1540
+ -1849:27.1053
+ -1617:52.4823
+ -2445:44.6583
+ -2730:57.5822
+ -2790:04.1835
+ -1556:51.5932
+ -2880:00.0000
+ -3170:38.1230
+ -3631:35.2345
+ -3647:53.3451
+ -2966:00.4562
+ -4138:11.5668
+ -3336:05.1896
+ -3823:49.8313
+ -3145:09.0129
+ -3289:27.5237
+ -3057:52.0156
+ -3885:44.8653
+ -4170:57.8205
+ -3145:09.1540
+ -3289:27.1053
+ -3057:52.4823
+ -3885:44.6583
+ -4170:57.5822
+ -4230:04.1835
+ -2996:51.5932
+ -77760:00.000
+ -78050:38.123
+ -78511:35.235
+ -78527:53.345
+ -77846:00.456
+ -79018:11.567
+ -78216:05.190
+ -78703:49.831
+ -78025:09.013
+ -78169:27.524
+ -77937:52.016
+ -78765:44.865
+ -79050:57.820
+ -78025:09.154
+ -78169:27.105
+ -77937:52.482
+ -78765:44.658
+ -79050:57.582
+ -79110:04.183
+ -77876:51.593
+ -980640:00.00
+ -980930:38.12
+ -981391:35.23
+ -981407:53.35
+ -980726:00.46
+ -981898:11.57
+ -981096:05.19
+ -981583:49.83
+ -980905:09.01
+ -981049:27.52
+ -980817:52.02
+ -981645:44.87
+ -981930:57.82
+ -980905:09.15
+ -981049:27.11
+ -980817:52.48
+ -981645:44.66
+ -981930:57.58
+ -981990:04.18
+ -980756:51.59
+])
+AT_CHECK([cat mtime14.5.out], [0], [dnl
+    00:00.00000
+   290:38.12301
+   751:35.23453
+   767:53.34505
+    86:00.45615
+  1258:11.56677
+   456:05.18964
+   943:49.83132
+   265:09.01293
+   409:27.52375
+   177:52.01565
+  1005:44.86529
+  1290:57.82047
+   265:09.15395
+   409:27.10533
+   177:52.48229
+  1005:44.65827
+  1290:57.58219
+  1350:04.18347
+   116:51.59319
+  1440:00.00000
+  1730:38.12301
+  2191:35.23453
+  2207:53.34505
+  1526:00.45615
+  2698:11.56677
+  1896:05.18964
+  2383:49.83132
+  1705:09.01293
+  1849:27.52375
+  1617:52.01565
+  2445:44.86529
+  2730:57.82047
+  1705:09.15395
+  1849:27.10533
+  1617:52.48229
+  2445:44.65827
+  2730:57.58219
+  2790:04.18347
+  1556:51.59319
+  2880:00.00000
+  3170:38.12301
+  3631:35.23453
+  3647:53.34505
+  2966:00.45615
+  4138:11.56677
+  3336:05.18964
+  3823:49.83132
+  3145:09.01293
+  3289:27.52375
+  3057:52.01565
+  3885:44.86529
+  4170:57.82047
+  3145:09.15395
+  3289:27.10533
+  3057:52.48229
+  3885:44.65827
+  4170:57.58219
+  4230:04.18347
+  2996:51.59319
+ 77760:00.00000
+ 78050:38.12301
+ 78511:35.23453
+ 78527:53.34505
+ 77846:00.45615
+ 79018:11.56677
+ 78216:05.18964
+ 78703:49.83132
+ 78025:09.01293
+ 78169:27.52375
+ 77937:52.01565
+ 78765:44.86529
+ 79050:57.82047
+ 78025:09.15395
+ 78169:27.10533
+ 77937:52.48229
+ 78765:44.65827
+ 79050:57.58219
+ 79110:04.18347
+ 77876:51.59319
+ 980640:00.0000
+ 980930:38.1230
+ 981391:35.2345
+ 981407:53.3450
+ 980726:00.4562
+ 981898:11.5668
+ 981096:05.1896
+ 981583:49.8313
+ 980905:09.0129
+ 981049:27.5237
+ 980817:52.0156
+ 981645:44.8653
+ 981930:57.8205
+ 980905:09.1539
+ 981049:27.1053
+ 980817:52.4823
+ 981645:44.6583
+ 981930:57.5822
+ 981990:04.1835
+ 980756:51.5932
+    00:00.00000
+  -290:38.12301
+  -751:35.23453
+  -767:53.34505
+   -86:00.45615
+ -1258:11.56677
+  -456:05.18964
+  -943:49.83132
+  -265:09.01293
+  -409:27.52375
+  -177:52.01565
+ -1005:44.86529
+ -1290:57.82047
+  -265:09.15395
+  -409:27.10533
+  -177:52.48229
+ -1005:44.65827
+ -1290:57.58219
+ -1350:04.18347
+  -116:51.59319
+ -1440:00.00000
+ -1730:38.12301
+ -2191:35.23453
+ -2207:53.34505
+ -1526:00.45615
+ -2698:11.56677
+ -1896:05.18964
+ -2383:49.83132
+ -1705:09.01293
+ -1849:27.52375
+ -1617:52.01565
+ -2445:44.86529
+ -2730:57.82047
+ -1705:09.15395
+ -1849:27.10533
+ -1617:52.48229
+ -2445:44.65827
+ -2730:57.58219
+ -2790:04.18347
+ -1556:51.59319
+ -2880:00.00000
+ -3170:38.12301
+ -3631:35.23453
+ -3647:53.34505
+ -2966:00.45615
+ -4138:11.56677
+ -3336:05.18964
+ -3823:49.83132
+ -3145:09.01293
+ -3289:27.52375
+ -3057:52.01565
+ -3885:44.86529
+ -4170:57.82047
+ -3145:09.15395
+ -3289:27.10533
+ -3057:52.48229
+ -3885:44.65827
+ -4170:57.58219
+ -4230:04.18347
+ -2996:51.59319
+ -77760:00.0000
+ -78050:38.1230
+ -78511:35.2345
+ -78527:53.3450
+ -77846:00.4561
+ -79018:11.5668
+ -78216:05.1896
+ -78703:49.8313
+ -78025:09.0129
+ -78169:27.5237
+ -77937:52.0157
+ -78765:44.8653
+ -79050:57.8205
+ -78025:09.1540
+ -78169:27.1053
+ -77937:52.4823
+ -78765:44.6583
+ -79050:57.5822
+ -79110:04.1835
+ -77876:51.5932
+ -980640:00.000
+ -980930:38.123
+ -981391:35.235
+ -981407:53.345
+ -980726:00.456
+ -981898:11.567
+ -981096:05.190
+ -981583:49.831
+ -980905:09.013
+ -981049:27.524
+ -980817:52.016
+ -981645:44.865
+ -981930:57.820
+ -980905:09.154
+ -981049:27.105
+ -980817:52.482
+ -981645:44.658
+ -981930:57.582
+ -981990:04.183
+ -980756:51.593
diff --git a/rust/pspp/src/format/testdata/display/mtime15.5.txt b/rust/pspp/src/format/testdata/display/mtime15.5.txt
new file mode 100644
index 0000000000..5cb9785d98
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime15.5.txt
@@ -0,0 +1,2020 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
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+ -981645:44.6583
+ -981930:57.5822
+ -981990:04.1835
+ -980756:51.5932
diff --git a/rust/pspp/src/format/testdata/display/mtime16.5.txt b/rust/pspp/src/format/testdata/display/mtime16.5.txt
new file mode 100644
index 0000000000..64fbb9cd03
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime16.5.txt
@@ -0,0 +1,2222 @@
+])
+AT_CHECK([cat mtime11.out], [0], [dnl
+       00:00
+      290:38
+      751:35
+      767:53
+       86:00
+     1258:11
+      456:05
+      943:49
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+      265:09
+      409:27
+      177:52
+     1005:44
+     1290:57
+     1350:04
+      116:51
+     1440:00
+     1730:38
+     2191:35
+     2207:53
+     1526:00
+     2698:11
+     1896:05
+     2383:49
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     1705:09
+     1849:27
+     1617:52
+     2445:44
+     2730:57
+     2790:04
+     1556:51
+     2880:00
+     3170:38
+     3631:35
+     3647:53
+     2966:00
+     4138:11
+     3336:05
+     3823:49
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     3145:09
+     3289:27
+     3057:52
+     3885:44
+     4170:57
+     4230:04
+     2996:51
+    77760:00
+    78050:38
+    78511:35
+    78527:53
+    77846:00
+    79018:11
+    78216:05
+    78703:49
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    78025:09
+    78169:27
+    77937:52
+    78765:44
+    79050:57
+    79110:04
+    77876:51
+   980640:00
+   980930:38
+   981391:35
+   981407:53
+   980726:00
+   981898:11
+   981096:05
+   981583:49
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   980905:09
+   981049:27
+   980817:52
+   981645:44
+   981930:57
+   981990:04
+   980756:51
+       00:00
+     -290:38
+     -751:35
+     -767:53
+      -86:00
+    -1258:11
+     -456:05
+     -943:49
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+     -265:09
+     -409:27
+     -177:52
+    -1005:44
+    -1290:57
+    -1350:04
+     -116:51
+    -1440:00
+    -1730:38
+    -2191:35
+    -2207:53
+    -1526:00
+    -2698:11
+    -1896:05
+    -2383:49
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -1705:09
+    -1849:27
+    -1617:52
+    -2445:44
+    -2730:57
+    -2790:04
+    -1556:51
+    -2880:00
+    -3170:38
+    -3631:35
+    -3647:53
+    -2966:00
+    -4138:11
+    -3336:05
+    -3823:49
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -3145:09
+    -3289:27
+    -3057:52
+    -3885:44
+    -4170:57
+    -4230:04
+    -2996:51
+   -77760:00
+   -78050:38
+   -78511:35
+   -78527:53
+   -77846:00
+   -79018:11
+   -78216:05
+   -78703:49
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -78025:09
+   -78169:27
+   -77937:52
+   -78765:44
+   -79050:57
+   -79110:04
+   -77876:51
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.1.out], [0], [dnl
+     00:00.0
+    290:38.1
+    751:35.2
+    767:53.3
+     86:00.5
+   1258:11.6
+    456:05.2
+    943:49.8
+    265:09.0
+    409:27.5
+    177:52.0
+   1005:44.9
+   1290:57.8
+    265:09.2
+    409:27.1
+    177:52.5
+   1005:44.7
+   1290:57.6
+   1350:04.2
+    116:51.6
+   1440:00.0
+   1730:38.1
+   2191:35.2
+   2207:53.3
+   1526:00.5
+   2698:11.6
+   1896:05.2
+   2383:49.8
+   1705:09.0
+   1849:27.5
+   1617:52.0
+   2445:44.9
+   2730:57.8
+   1705:09.2
+   1849:27.1
+   1617:52.5
+   2445:44.7
+   2730:57.6
+   2790:04.2
+   1556:51.6
+   2880:00.0
+   3170:38.1
+   3631:35.2
+   3647:53.3
+   2966:00.5
+   4138:11.6
+   3336:05.2
+   3823:49.8
+   3145:09.0
+   3289:27.5
+   3057:52.0
+   3885:44.9
+   4170:57.8
+   3145:09.2
+   3289:27.1
+   3057:52.5
+   3885:44.7
+   4170:57.6
+   4230:04.2
+   2996:51.6
+  77760:00.0
+  78050:38.1
+  78511:35.2
+  78527:53.3
+  77846:00.5
+  79018:11.6
+  78216:05.2
+  78703:49.8
+  78025:09.0
+  78169:27.5
+  77937:52.0
+  78765:44.9
+  79050:57.8
+  78025:09.2
+  78169:27.1
+  77937:52.5
+  78765:44.7
+  79050:57.6
+  79110:04.2
+  77876:51.6
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+     00:00.0
+   -290:38.1
+   -751:35.2
+   -767:53.3
+    -86:00.5
+  -1258:11.6
+   -456:05.2
+   -943:49.8
+   -265:09.0
+   -409:27.5
+   -177:52.0
+  -1005:44.9
+  -1290:57.8
+   -265:09.2
+   -409:27.1
+   -177:52.5
+  -1005:44.7
+  -1290:57.6
+  -1350:04.2
+   -116:51.6
+  -1440:00.0
+  -1730:38.1
+  -2191:35.2
+  -2207:53.3
+  -1526:00.5
+  -2698:11.6
+  -1896:05.2
+  -2383:49.8
+  -1705:09.0
+  -1849:27.5
+  -1617:52.0
+  -2445:44.9
+  -2730:57.8
+  -1705:09.2
+  -1849:27.1
+  -1617:52.5
+  -2445:44.7
+  -2730:57.6
+  -2790:04.2
+  -1556:51.6
+  -2880:00.0
+  -3170:38.1
+  -3631:35.2
+  -3647:53.3
+  -2966:00.5
+  -4138:11.6
+  -3336:05.2
+  -3823:49.8
+  -3145:09.0
+  -3289:27.5
+  -3057:52.0
+  -3885:44.9
+  -4170:57.8
+  -3145:09.2
+  -3289:27.1
+  -3057:52.5
+  -3885:44.7
+  -4170:57.6
+  -4230:04.2
+  -2996:51.6
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.2.out], [0], [dnl
+    00:00.00
+   290:38.12
+   751:35.23
+   767:53.35
+    86:00.46
+  1258:11.57
+   456:05.19
+   943:49.83
+   265:09.01
+   409:27.52
+   177:52.02
+  1005:44.87
+  1290:57.82
+   265:09.15
+   409:27.11
+   177:52.48
+  1005:44.66
+  1290:57.58
+  1350:04.18
+   116:51.59
+  1440:00.00
+  1730:38.12
+  2191:35.23
+  2207:53.35
+  1526:00.46
+  2698:11.57
+  1896:05.19
+  2383:49.83
+  1705:09.01
+  1849:27.52
+  1617:52.02
+  2445:44.87
+  2730:57.82
+  1705:09.15
+  1849:27.11
+  1617:52.48
+  2445:44.66
+  2730:57.58
+  2790:04.18
+  1556:51.59
+  2880:00.00
+  3170:38.12
+  3631:35.23
+  3647:53.35
+  2966:00.46
+  4138:11.57
+  3336:05.19
+  3823:49.83
+  3145:09.01
+  3289:27.52
+  3057:52.02
+  3885:44.87
+  4170:57.82
+  3145:09.15
+  3289:27.11
+  3057:52.48
+  3885:44.66
+  4170:57.58
+  4230:04.18
+  2996:51.59
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+    00:00.00
+  -290:38.12
+  -751:35.23
+  -767:53.35
+   -86:00.46
+ -1258:11.57
+  -456:05.19
+  -943:49.83
+  -265:09.01
+  -409:27.52
+  -177:52.02
+ -1005:44.87
+ -1290:57.82
+  -265:09.15
+  -409:27.11
+  -177:52.48
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+  -116:51.59
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.3.out], [0], [dnl
+   00:00.000
+  290:38.123
+  751:35.235
+  767:53.345
+   86:00.456
+ 1258:11.567
+  456:05.190
+  943:49.831
+  265:09.013
+  409:27.524
+  177:52.016
+ 1005:44.865
+ 1290:57.820
+  265:09.154
+  409:27.105
+  177:52.482
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+  116:51.593
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
+ 2698:11.567
+ 1896:05.190
+ 2383:49.831
+ 1705:09.013
+ 1849:27.524
+ 1617:52.016
+ 2445:44.865
+ 2730:57.820
+ 1705:09.154
+ 1849:27.105
+ 1617:52.482
+ 2445:44.658
+ 2730:57.582
+ 2790:04.183
+ 1556:51.593
+ 2880:00.000
+ 3170:38.123
+ 3631:35.235
+ 3647:53.345
+ 2966:00.456
+ 4138:11.567
+ 3336:05.190
+ 3823:49.831
+ 3145:09.013
+ 3289:27.524
+ 3057:52.016
+ 3885:44.865
+ 4170:57.820
+ 3145:09.154
+ 3289:27.105
+ 3057:52.482
+ 3885:44.658
+ 4170:57.582
+ 4230:04.183
+ 2996:51.593
+ 77760:00.00
+ 78050:38.12
+ 78511:35.23
+ 78527:53.35
+ 77846:00.46
+ 79018:11.57
+ 78216:05.19
+ 78703:49.83
+ 78025:09.01
+ 78169:27.52
+ 77937:52.02
+ 78765:44.87
+ 79050:57.82
+ 78025:09.15
+ 78169:27.11
+ 77937:52.48
+ 78765:44.66
+ 79050:57.58
+ 79110:04.18
+ 77876:51.59
+ 980640:00.0
+ 980930:38.1
+ 981391:35.2
+ 981407:53.3
+ 980726:00.5
+ 981898:11.6
+ 981096:05.2
+ 981583:49.8
+ 980905:09.0
+ 981049:27.5
+ 980817:52.0
+ 981645:44.9
+ 981930:57.8
+ 980905:09.2
+ 981049:27.1
+ 980817:52.5
+ 981645:44.7
+ 981930:57.6
+ 981990:04.2
+ 980756:51.6
+   00:00.000
+ -290:38.123
+ -751:35.235
+ -767:53.345
+  -86:00.456
+ -1258:11.57
+ -456:05.190
+ -943:49.831
+ -265:09.013
+ -409:27.524
+ -177:52.016
+ -1005:44.87
+ -1290:57.82
+ -265:09.154
+ -409:27.105
+ -177:52.482
+ -1005:44.66
+ -1290:57.58
+ -1350:04.18
+ -116:51.593
+ -1440:00.00
+ -1730:38.12
+ -2191:35.23
+ -2207:53.35
+ -1526:00.46
+ -2698:11.57
+ -1896:05.19
+ -2383:49.83
+ -1705:09.01
+ -1849:27.52
+ -1617:52.02
+ -2445:44.87
+ -2730:57.82
+ -1705:09.15
+ -1849:27.11
+ -1617:52.48
+ -2445:44.66
+ -2730:57.58
+ -2790:04.18
+ -1556:51.59
+ -2880:00.00
+ -3170:38.12
+ -3631:35.23
+ -3647:53.35
+ -2966:00.46
+ -4138:11.57
+ -3336:05.19
+ -3823:49.83
+ -3145:09.01
+ -3289:27.52
+ -3057:52.02
+ -3885:44.87
+ -4170:57.82
+ -3145:09.15
+ -3289:27.11
+ -3057:52.48
+ -3885:44.66
+ -4170:57.58
+ -4230:04.18
+ -2996:51.59
+ -77760:00.0
+ -78050:38.1
+ -78511:35.2
+ -78527:53.3
+ -77846:00.5
+ -79018:11.6
+ -78216:05.2
+ -78703:49.8
+ -78025:09.0
+ -78169:27.5
+ -77937:52.0
+ -78765:44.9
+ -79050:57.8
+ -78025:09.2
+ -78169:27.1
+ -77937:52.5
+ -78765:44.7
+ -79050:57.6
+ -79110:04.2
+ -77876:51.6
+  -980640:00
+  -980930:38
+  -981391:35
+  -981407:53
+  -980726:00
+  -981898:11
+  -981096:05
+  -981583:49
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -980905:09
+  -981049:27
+  -980817:52
+  -981645:44
+  -981930:57
+  -981990:04
+  -980756:51
+])
+AT_CHECK([cat mtime11.4.out], [0], [dnl
+  00:00.0000
+ 290:38.1230
+ 751:35.2345
+ 767:53.3451
+  86:00.4561
+ 1258:11.567
+ 456:05.1896
+ 943:49.8313
+ 265:09.0129
+ 409:27.5238
+ 177:52.0156
+ 1005:44.865
+ 1290:57.820
+ 265:09.1539
+ 409:27.1053
+ 177:52.4823
+ 1005:44.658
+ 1290:57.582
+ 1350:04.183
+ 116:51.5932
+ 1440:00.000
+ 1730:38.123
+ 2191:35.235
+ 2207:53.345
+ 1526:00.456
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diff --git a/rust/pspp/src/format/testdata/display/mtime5.txt b/rust/pspp/src/format/testdata/display/mtime5.txt
new file mode 100644
index 0000000000..8823044dae
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime5.txt
@@ -0,0 +1,200 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime6.txt b/rust/pspp/src/format/testdata/display/mtime6.txt
new file mode 100644
index 0000000000..28461c7056
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime6.txt
@@ -0,0 +1,402 @@
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new file mode 100644
index 0000000000..33cb65f529
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime7.1.txt
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diff --git a/rust/pspp/src/format/testdata/display/mtime7.txt b/rust/pspp/src/format/testdata/display/mtime7.txt
new file mode 100644
index 0000000000..d062e1c17b
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime7.txt
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diff --git a/rust/pspp/src/format/testdata/display/mtime8.1.txt b/rust/pspp/src/format/testdata/display/mtime8.1.txt
new file mode 100644
index 0000000000..4411c9ea6a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime8.1.txt
@@ -0,0 +1,1210 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime8.2.txt b/rust/pspp/src/format/testdata/display/mtime8.2.txt
new file mode 100644
index 0000000000..f1da988426
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime8.2.txt
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diff --git a/rust/pspp/src/format/testdata/display/mtime8.txt b/rust/pspp/src/format/testdata/display/mtime8.txt
new file mode 100644
index 0000000000..eedc4e17f6
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime8.txt
@@ -0,0 +1,1008 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime9.1.txt b/rust/pspp/src/format/testdata/display/mtime9.1.txt
new file mode 100644
index 0000000000..55f3b0ccca
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime9.1.txt
@@ -0,0 +1,1816 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime9.2.txt b/rust/pspp/src/format/testdata/display/mtime9.2.txt
new file mode 100644
index 0000000000..8e98e4b3fb
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime9.2.txt
@@ -0,0 +1,2018 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime9.3.txt b/rust/pspp/src/format/testdata/display/mtime9.3.txt
new file mode 100644
index 0000000000..8145b02a28
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime9.3.txt
@@ -0,0 +1,200 @@
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diff --git a/rust/pspp/src/format/testdata/display/mtime9.txt b/rust/pspp/src/format/testdata/display/mtime9.txt
new file mode 100644
index 0000000000..854c042c60
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/mtime9.txt
@@ -0,0 +1,1614 @@
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+  1896:05
+  2383:49
+  1705:09
+  1849:27
+  1617:52
+  2445:44
+  2730:57
+  1705:09
+  1849:27
+  1617:52
+  2445:44
+  2730:57
+  2790:04
+  1556:51
+  2880:00
+  3170:38
+  3631:35
+  3647:53
+  2966:00
+  4138:11
+  3336:05
+  3823:49
+  3145:09
+  3289:27
+  3057:52
+  3885:44
+  4170:57
+  3145:09
+  3289:27
+  3057:52
+  3885:44
+  4170:57
+  4230:04
+  2996:51
+ 77760:00
+ 78050:38
+ 78511:35
+ 78527:53
+ 77846:00
+ 79018:11
+ 78216:05
+ 78703:49
+ 78025:09
+ 78169:27
+ 77937:52
+ 78765:44
+ 79050:57
+ 78025:09
+ 78169:27
+ 77937:52
+ 78765:44
+ 79050:57
+ 79110:04
+ 77876:51
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+  00:00.0
+  -290:38
+  -751:35
+  -767:53
+ -86:00.5
+ -1258:11
+  -456:05
+  -943:49
+  -265:09
+  -409:27
+  -177:52
+ -1005:44
+ -1290:57
+  -265:09
+  -409:27
+  -177:52
+ -1005:44
+ -1290:57
+ -1350:04
+  -116:51
+ -1440:00
+ -1730:38
+ -2191:35
+ -2207:53
+ -1526:00
+ -2698:11
+ -1896:05
+ -2383:49
+ -1705:09
+ -1849:27
+ -1617:52
+ -2445:44
+ -2730:57
+ -1705:09
+ -1849:27
+ -1617:52
+ -2445:44
+ -2730:57
+ -2790:04
+ -1556:51
+ -2880:00
+ -3170:38
+ -3631:35
+ -3647:53
+ -2966:00
+ -4138:11
+ -3336:05
+ -3823:49
+ -3145:09
+ -3289:27
+ -3057:52
+ -3885:44
+ -4170:57
+ -3145:09
+ -3289:27
+ -3057:52
+ -3885:44
+ -4170:57
+ -4230:04
+ -2996:51
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat mtime8.2.out], [0], [dnl
+ 00:00.00
+ 290:38.1
+ 751:35.2
+ 767:53.3
+ 86:00.46
+  1258:11
+ 456:05.2
+ 943:49.8
+ 265:09.0
+ 409:27.5
+ 177:52.0
+  1005:44
+  1290:57
+ 265:09.2
+ 409:27.1
+ 177:52.5
+  1005:44
+  1290:57
+  1350:04
+ 116:51.6
+  1440:00
+  1730:38
+  2191:35
+  2207:53
+  1526:00
+  2698:11
+  1896:05
+  2383:49
+  1705:09
+  1849:27
+  1617:52
+  2445:44
+  2730:57
+  1705:09
+  1849:27
+  1617:52
+  2445:44
+  2730:57
+  2790:04
+  1556:51
+  2880:00
+  3170:38
+  3631:35
+  3647:53
+  2966:00
+  4138:11
+  3336:05
+  3823:49
+  3145:09
+  3289:27
+  3057:52
+  3885:44
+  4170:57
+  3145:09
+  3289:27
+  3057:52
+  3885:44
+  4170:57
+  4230:04
+  2996:51
+ 77760:00
+ 78050:38
+ 78511:35
+ 78527:53
+ 77846:00
+ 79018:11
+ 78216:05
+ 78703:49
+ 78025:09
+ 78169:27
+ 77937:52
+ 78765:44
+ 79050:57
+ 78025:09
+ 78169:27
+ 77937:52
+ 78765:44
+ 79050:57
+ 79110:04
+ 77876:51
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ 00:00.00
+  -290:38
+  -751:35
+  -767:53
+ -86:00.5
+ -1258:11
+  -456:05
+  -943:49
+  -265:09
+  -409:27
+  -177:52
+ -1005:44
+ -1290:57
+  -265:09
+  -409:27
+  -177:52
+ -1005:44
+ -1290:57
+ -1350:04
+  -116:51
+ -1440:00
+ -1730:38
+ -2191:35
+ -2207:53
+ -1526:00
+ -2698:11
+ -1896:05
+ -2383:49
+ -1705:09
+ -1849:27
+ -1617:52
+ -2445:44
+ -2730:57
+ -1705:09
+ -1849:27
+ -1617:52
+ -2445:44
+ -2730:57
+ -2790:04
+ -1556:51
+ -2880:00
+ -3170:38
+ -3631:35
+ -3647:53
+ -2966:00
+ -4138:11
+ -3336:05
+ -3823:49
+ -3145:09
+ -3289:27
+ -3057:52
+ -3885:44
+ -4170:57
+ -3145:09
+ -3289:27
+ -3057:52
+ -3885:44
+ -4170:57
+ -4230:04
+ -2996:51
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+])
+AT_CHECK([cat mtime9.out], [0], [dnl
+     00:00
+    290:38
+    751:35
+    767:53
+     86:00
+   1258:11
+    456:05
+    943:49
+    265:09
+    409:27
+    177:52
+   1005:44
+   1290:57
+    265:09
+    409:27
+    177:52
+   1005:44
+   1290:57
+   1350:04
+    116:51
+   1440:00
+   1730:38
+   2191:35
+   2207:53
+   1526:00
+   2698:11
+   1896:05
+   2383:49
+   1705:09
+   1849:27
+   1617:52
+   2445:44
+   2730:57
+   1705:09
+   1849:27
+   1617:52
+   2445:44
+   2730:57
+   2790:04
+   1556:51
+   2880:00
+   3170:38
+   3631:35
+   3647:53
+   2966:00
+   4138:11
+   3336:05
+   3823:49
+   3145:09
+   3289:27
+   3057:52
+   3885:44
+   4170:57
+   3145:09
+   3289:27
+   3057:52
+   3885:44
+   4170:57
+   4230:04
+   2996:51
+  77760:00
+  78050:38
+  78511:35
+  78527:53
+  77846:00
+  79018:11
+  78216:05
+  78703:49
+  78025:09
+  78169:27
+  77937:52
+  78765:44
+  79050:57
+  78025:09
+  78169:27
+  77937:52
+  78765:44
+  79050:57
+  79110:04
+  77876:51
+ 980640:00
+ 980930:38
+ 981391:35
+ 981407:53
+ 980726:00
+ 981898:11
+ 981096:05
+ 981583:49
+ 980905:09
+ 981049:27
+ 980817:52
+ 981645:44
+ 981930:57
+ 980905:09
+ 981049:27
+ 980817:52
+ 981645:44
+ 981930:57
+ 981990:04
+ 980756:51
+     00:00
+   -290:38
+   -751:35
+   -767:53
+    -86:00
+  -1258:11
+   -456:05
+   -943:49
+   -265:09
+   -409:27
+   -177:52
+  -1005:44
+  -1290:57
+   -265:09
+   -409:27
+   -177:52
+  -1005:44
+  -1290:57
+  -1350:04
+   -116:51
+  -1440:00
+  -1730:38
+  -2191:35
+  -2207:53
+  -1526:00
+  -2698:11
+  -1896:05
+  -2383:49
+  -1705:09
+  -1849:27
+  -1617:52
+  -2445:44
+  -2730:57
+  -1705:09
+  -1849:27
+  -1617:52
+  -2445:44
+  -2730:57
+  -2790:04
+  -1556:51
+  -2880:00
+  -3170:38
+  -3631:35
+  -3647:53
+  -2966:00
+  -4138:11
+  -3336:05
+  -3823:49
+  -3145:09
+  -3289:27
+  -3057:52
+  -3885:44
+  -4170:57
+  -3145:09
+  -3289:27
+  -3057:52
+  -3885:44
+  -4170:57
+  -4230:04
+  -2996:51
+ -77760:00
+ -78050:38
+ -78511:35
+ -78527:53
+ -77846:00
+ -79018:11
+ -78216:05
+ -78703:49
+ -78025:09
+ -78169:27
+ -77937:52
+ -78765:44
+ -79050:57
+ -78025:09
+ -78169:27
+ -77937:52
+ -78765:44
+ -79050:57
+ -79110:04
+ -77876:51
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
+ *********
diff --git a/rust/pspp/src/format/testdata/display/time-input.txt b/rust/pspp/src/format/testdata/display/time-input.txt
new file mode 100644
index 0000000000..5f5bd28d93
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time-input.txt
@@ -0,0 +1,200 @@
+0 0:0:0
+0 4:50:38.12301
+0 12:31:35.23453
+0 12:47:53.34505
+0 1:26:0.45615
+0 20:58:11.56677
+0 7:36:5.18964
+0 15:43:49.83132
+0 4:25:9.01293
+0 6:49:27.52375
+0 2:57:52.01565
+0 16:45:44.86529
+0 21:30:57.82047
+0 4:25:9.15395
+0 6:49:27.10533
+0 2:57:52.48229
+0 16:45:44.65827
+0 21:30:57.58219
+0 22:30:4.18347
+0 1:56:51.59319
+1 0:0:0
+1 4:50:38.12301
+1 12:31:35.23453
+1 12:47:53.34505
+1 1:26:0.45615
+1 20:58:11.56677
+1 7:36:5.18964
+1 15:43:49.83132
+1 4:25:9.01293
+1 6:49:27.52375
+1 2:57:52.01565
+1 16:45:44.86529
+1 21:30:57.82047
+1 4:25:9.15395
+1 6:49:27.10533
+1 2:57:52.48229
+1 16:45:44.65827
+1 21:30:57.58219
+1 22:30:4.18347
+1 1:56:51.59319
+2 0:0:0
+2 4:50:38.12301
+2 12:31:35.23453
+2 12:47:53.34505
+2 1:26:0.45615
+2 20:58:11.56677
+2 7:36:5.18964
+2 15:43:49.83132
+2 4:25:9.01293
+2 6:49:27.52375
+2 2:57:52.01565
+2 16:45:44.86529
+2 21:30:57.82047
+2 4:25:9.15395
+2 6:49:27.10533
+2 2:57:52.48229
+2 16:45:44.65827
+2 21:30:57.58219
+2 22:30:4.18347
+2 1:56:51.59319
+54 0:0:0
+54 4:50:38.12301
+54 12:31:35.23453
+54 12:47:53.34505
+54 1:26:0.45615
+54 20:58:11.56677
+54 7:36:5.18964
+54 15:43:49.83132
+54 4:25:9.01293
+54 6:49:27.52375
+54 2:57:52.01565
+54 16:45:44.86529
+54 21:30:57.82047
+54 4:25:9.15395
+54 6:49:27.10533
+54 2:57:52.48229
+54 16:45:44.65827
+54 21:30:57.58219
+54 22:30:4.18347
+54 1:56:51.59319
+681 0:0:0
+681 4:50:38.12301
+681 12:31:35.23453
+681 12:47:53.34505
+681 1:26:0.45615
+681 20:58:11.56677
+681 7:36:5.18964
+681 15:43:49.83132
+681 4:25:9.01293
+681 6:49:27.52375
+681 2:57:52.01565
+681 16:45:44.86529
+681 21:30:57.82047
+681 4:25:9.15395
+681 6:49:27.10533
+681 2:57:52.48229
+681 16:45:44.65827
+681 21:30:57.58219
+681 22:30:4.18347
+681 1:56:51.59319
+-0 0:0:0
+-0 4:50:38.12301
+-0 12:31:35.23453
+-0 12:47:53.34505
+-0 1:26:0.45615
+-0 20:58:11.56677
+-0 7:36:5.18964
+-0 15:43:49.83132
+-0 4:25:9.01293
+-0 6:49:27.52375
+-0 2:57:52.01565
+-0 16:45:44.86529
+-0 21:30:57.82047
+-0 4:25:9.15395
+-0 6:49:27.10533
+-0 2:57:52.48229
+-0 16:45:44.65827
+-0 21:30:57.58219
+-0 22:30:4.18347
+-0 1:56:51.59319
+-1 0:0:0
+-1 4:50:38.12301
+-1 12:31:35.23453
+-1 12:47:53.34505
+-1 1:26:0.45615
+-1 20:58:11.56677
+-1 7:36:5.18964
+-1 15:43:49.83132
+-1 4:25:9.01293
+-1 6:49:27.52375
+-1 2:57:52.01565
+-1 16:45:44.86529
+-1 21:30:57.82047
+-1 4:25:9.15395
+-1 6:49:27.10533
+-1 2:57:52.48229
+-1 16:45:44.65827
+-1 21:30:57.58219
+-1 22:30:4.18347
+-1 1:56:51.59319
+-2 0:0:0
+-2 4:50:38.12301
+-2 12:31:35.23453
+-2 12:47:53.34505
+-2 1:26:0.45615
+-2 20:58:11.56677
+-2 7:36:5.18964
+-2 15:43:49.83132
+-2 4:25:9.01293
+-2 6:49:27.52375
+-2 2:57:52.01565
+-2 16:45:44.86529
+-2 21:30:57.82047
+-2 4:25:9.15395
+-2 6:49:27.10533
+-2 2:57:52.48229
+-2 16:45:44.65827
+-2 21:30:57.58219
+-2 22:30:4.18347
+-2 1:56:51.59319
+-54 0:0:0
+-54 4:50:38.12301
+-54 12:31:35.23453
+-54 12:47:53.34505
+-54 1:26:0.45615
+-54 20:58:11.56677
+-54 7:36:5.18964
+-54 15:43:49.83132
+-54 4:25:9.01293
+-54 6:49:27.52375
+-54 2:57:52.01565
+-54 16:45:44.86529
+-54 21:30:57.82047
+-54 4:25:9.15395
+-54 6:49:27.10533
+-54 2:57:52.48229
+-54 16:45:44.65827
+-54 21:30:57.58219
+-54 22:30:4.18347
+-54 1:56:51.59319
+-681 0:0:0
+-681 4:50:38.12301
+-681 12:31:35.23453
+-681 12:47:53.34505
+-681 1:26:0.45615
+-681 20:58:11.56677
+-681 7:36:5.18964
+-681 15:43:49.83132
+-681 4:25:9.01293
+-681 6:49:27.52375
+-681 2:57:52.01565
+-681 16:45:44.86529
+-681 21:30:57.82047
+-681 4:25:9.15395
+-681 6:49:27.10533
+-681 2:57:52.48229
+-681 16:45:44.65827
+-681 21:30:57.58219
+-681 22:30:4.18347
+-681 1:56:51.59319
diff --git a/rust/pspp/src/format/testdata/display/time10.1.txt b/rust/pspp/src/format/testdata/display/time10.1.txt
new file mode 100644
index 0000000000..619bbeb873
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time10.1.txt
@@ -0,0 +1,200 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
diff --git a/rust/pspp/src/format/testdata/display/time10.txt b/rust/pspp/src/format/testdata/display/time10.txt
new file mode 100644
index 0000000000..ed5f78a3ea
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time10.txt
@@ -0,0 +1,200 @@
+   00:00:00
+   04:50:38
+   12:31:35
+   12:47:53
+   01:26:00
+   20:58:11
+   07:36:05
+   15:43:49
+   04:25:09
+   06:49:27
+   02:57:52
+   16:45:44
+   21:30:57
+   04:25:09
+   06:49:27
+   02:57:52
+   16:45:44
+   21:30:57
+   22:30:04
+   01:56:51
+   24:00:00
+   28:50:38
+   36:31:35
+   36:47:53
+   25:26:00
+   44:58:11
+   31:36:05
+   39:43:49
+   28:25:09
+   30:49:27
+   26:57:52
+   40:45:44
+   45:30:57
+   28:25:09
+   30:49:27
+   26:57:52
+   40:45:44
+   45:30:57
+   46:30:04
+   25:56:51
+   48:00:00
+   52:50:38
+   60:31:35
+   60:47:53
+   49:26:00
+   68:58:11
+   55:36:05
+   63:43:49
+   52:25:09
+   54:49:27
+   50:57:52
+   64:45:44
+   69:30:57
+   52:25:09
+   54:49:27
+   50:57:52
+   64:45:44
+   69:30:57
+   70:30:04
+   49:56:51
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+   00:00:00
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
diff --git a/rust/pspp/src/format/testdata/display/time11.1.txt b/rust/pspp/src/format/testdata/display/time11.1.txt
new file mode 100644
index 0000000000..09c11b1372
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time11.1.txt
@@ -0,0 +1,604 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
diff --git a/rust/pspp/src/format/testdata/display/time11.2.txt b/rust/pspp/src/format/testdata/display/time11.2.txt
new file mode 100644
index 0000000000..1d90b45a71
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time11.2.txt
@@ -0,0 +1,806 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
diff --git a/rust/pspp/src/format/testdata/display/time11.txt b/rust/pspp/src/format/testdata/display/time11.txt
new file mode 100644
index 0000000000..07c4dc7476
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time11.txt
@@ -0,0 +1,402 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
diff --git a/rust/pspp/src/format/testdata/display/time12.1.txt b/rust/pspp/src/format/testdata/display/time12.1.txt
new file mode 100644
index 0000000000..e5fb5161fe
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time12.1.txt
@@ -0,0 +1,1210 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+   -16350:49
+   -16346:57
+   -16360:45
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+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     12:47:53
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time12.2.txt b/rust/pspp/src/format/testdata/display/time12.2.txt
new file mode 100644
index 0000000000..b46a7dcd38
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time12.2.txt
@@ -0,0 +1,1412 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
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+ 16345:26:00
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+ 16351:36:05
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+ 16348:25:09
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+ 16346:57:52
+ 16360:45:44
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+ 16348:25:09
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+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
+     20:58:11
+     07:36:05
+     15:43:49
+     04:25:09
+     06:49:27
+     02:57:52
+     16:45:44
+     21:30:57
+     04:25:09
+     06:49:27
+     02:57:52
+     16:45:44
+     21:30:57
+     22:30:04
+     01:56:51
+     24:00:00
+     28:50:38
+     36:31:35
+     36:47:53
+     25:26:00
+     44:58:11
+     31:36:05
+     39:43:49
+     28:25:09
+     30:49:27
+     26:57:52
+     40:45:44
+     45:30:57
+     28:25:09
+     30:49:27
+     26:57:52
+     40:45:44
+     45:30:57
+     46:30:04
+     25:56:51
+     48:00:00
+     52:50:38
+     60:31:35
+     60:47:53
+     49:26:00
+     68:58:11
+     55:36:05
+     63:43:49
+     52:25:09
+     54:49:27
+     50:57:52
+     64:45:44
+     69:30:57
+     52:25:09
+     54:49:27
+     50:57:52
+     64:45:44
+     69:30:57
+     70:30:04
+     49:56:51
+   1296:00:00
+   1300:50:38
+   1308:31:35
+   1308:47:53
+   1297:26:00
+   1316:58:11
+   1303:36:05
+   1311:43:49
+   1300:25:09
+   1302:49:27
+   1298:57:52
+   1312:45:44
+   1317:30:57
+   1300:25:09
+   1302:49:27
+   1298:57:52
+   1312:45:44
+   1317:30:57
+   1318:30:04
+   1297:56:51
+  16344:00:00
+  16348:50:38
+  16356:31:35
+  16356:47:53
+  16345:26:00
+  16364:58:11
+  16351:36:05
+  16359:43:49
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16366:30:04
+  16345:56:51
+     00:00:00
+    -04:50:38
+    -12:31:35
+    -12:47:53
+    -01:26:00
+    -20:58:11
+    -07:36:05
+    -15:43:49
+    -04:25:09
+    -06:49:27
+    -02:57:52
+    -16:45:44
+    -21:30:57
+    -04:25:09
+    -06:49:27
+    -02:57:52
+    -16:45:44
+    -21:30:57
+    -22:30:04
+    -01:56:51
+    -24:00:00
+    -28:50:38
+    -36:31:35
+    -36:47:53
+    -25:26:00
+    -44:58:11
+    -31:36:05
+    -39:43:49
+    -28:25:09
+    -30:49:27
+    -26:57:52
+    -40:45:44
+    -45:30:57
+    -28:25:09
+    -30:49:27
+    -26:57:52
+    -40:45:44
+    -45:30:57
+    -46:30:04
+    -25:56:51
+    -48:00:00
+    -52:50:38
+    -60:31:35
+    -60:47:53
+    -49:26:00
+    -68:58:11
+    -55:36:05
+    -63:43:49
+    -52:25:09
+    -54:49:27
+    -50:57:52
+    -64:45:44
+    -69:30:57
+    -52:25:09
+    -54:49:27
+    -50:57:52
+    -64:45:44
+    -69:30:57
+    -70:30:04
+    -49:56:51
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
+  -1308:47:53
+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
+  -1311:43:49
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
+   00:00:00.0
+   04:50:38.1
+   12:31:35.2
+   12:47:53.3
+   01:26:00.5
+   20:58:11.6
+   07:36:05.2
+   15:43:49.8
+   04:25:09.0
+   06:49:27.5
+   02:57:52.0
+   16:45:44.9
+   21:30:57.8
+   04:25:09.2
+   06:49:27.1
+   02:57:52.5
+   16:45:44.7
+   21:30:57.6
+   22:30:04.2
+   01:56:51.6
+   24:00:00.0
+   28:50:38.1
+   36:31:35.2
+   36:47:53.3
+   25:26:00.5
+   44:58:11.6
+   31:36:05.2
+   39:43:49.8
+   28:25:09.0
+   30:49:27.5
+   26:57:52.0
+   40:45:44.9
+   45:30:57.8
+   28:25:09.2
+   30:49:27.1
+   26:57:52.5
+   40:45:44.7
+   45:30:57.6
+   46:30:04.2
+   25:56:51.6
+   48:00:00.0
+   52:50:38.1
+   60:31:35.2
+   60:47:53.3
+   49:26:00.5
+   68:58:11.6
+   55:36:05.2
+   63:43:49.8
+   52:25:09.0
+   54:49:27.5
+   50:57:52.0
+   64:45:44.9
+   69:30:57.8
+   52:25:09.2
+   54:49:27.1
+   50:57:52.5
+   64:45:44.7
+   69:30:57.6
+   70:30:04.2
+   49:56:51.6
+ 1296:00:00.0
+ 1300:50:38.1
+ 1308:31:35.2
+ 1308:47:53.3
+ 1297:26:00.5
+ 1316:58:11.6
+ 1303:36:05.2
+ 1311:43:49.8
+ 1300:25:09.0
+ 1302:49:27.5
+ 1298:57:52.0
+ 1312:45:44.9
+ 1317:30:57.8
+ 1300:25:09.2
+ 1302:49:27.1
+ 1298:57:52.5
+ 1312:45:44.7
+ 1317:30:57.6
+ 1318:30:04.2
+ 1297:56:51.6
+  16344:00:00
+  16348:50:38
+  16356:31:35
+  16356:47:53
+  16345:26:00
+  16364:58:11
+  16351:36:05
+  16359:43:49
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16366:30:04
+  16345:56:51
+   00:00:00.0
+  -04:50:38.1
+  -12:31:35.2
+  -12:47:53.3
+  -01:26:00.5
+  -20:58:11.6
+  -07:36:05.2
+  -15:43:49.8
+  -04:25:09.0
+  -06:49:27.5
+  -02:57:52.0
+  -16:45:44.9
+  -21:30:57.8
+  -04:25:09.2
+  -06:49:27.1
+  -02:57:52.5
+  -16:45:44.7
+  -21:30:57.6
+  -22:30:04.2
+  -01:56:51.6
+  -24:00:00.0
+  -28:50:38.1
+  -36:31:35.2
+  -36:47:53.3
+  -25:26:00.5
+  -44:58:11.6
+  -31:36:05.2
+  -39:43:49.8
+  -28:25:09.0
+  -30:49:27.5
+  -26:57:52.0
+  -40:45:44.9
+  -45:30:57.8
+  -28:25:09.2
+  -30:49:27.1
+  -26:57:52.5
+  -40:45:44.7
+  -45:30:57.6
+  -46:30:04.2
+  -25:56:51.6
+  -48:00:00.0
+  -52:50:38.1
+  -60:31:35.2
+  -60:47:53.3
+  -49:26:00.5
+  -68:58:11.6
+  -55:36:05.2
+  -63:43:49.8
+  -52:25:09.0
+  -54:49:27.5
+  -50:57:52.0
+  -64:45:44.9
+  -69:30:57.8
+  -52:25:09.2
+  -54:49:27.1
+  -50:57:52.5
+  -64:45:44.7
+  -69:30:57.6
+  -70:30:04.2
+  -49:56:51.6
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
+  -1308:47:53
+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
+  -1311:43:49
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
+  00:00:00.00
+  04:50:38.12
+  12:31:35.23
+  12:47:53.35
+  01:26:00.46
+  20:58:11.57
+  07:36:05.19
+  15:43:49.83
+  04:25:09.01
+  06:49:27.52
+  02:57:52.02
+  16:45:44.87
+  21:30:57.82
+  04:25:09.15
+  06:49:27.11
+  02:57:52.48
+  16:45:44.66
+  21:30:57.58
+  22:30:04.18
+  01:56:51.59
+  24:00:00.00
+  28:50:38.12
+  36:31:35.23
+  36:47:53.35
+  25:26:00.46
+  44:58:11.57
+  31:36:05.19
+  39:43:49.83
+  28:25:09.01
+  30:49:27.52
+  26:57:52.02
+  40:45:44.87
+  45:30:57.82
+  28:25:09.15
+  30:49:27.11
+  26:57:52.48
+  40:45:44.66
+  45:30:57.58
+  46:30:04.18
+  25:56:51.59
+  48:00:00.00
+  52:50:38.12
+  60:31:35.23
+  60:47:53.35
+  49:26:00.46
+  68:58:11.57
+  55:36:05.19
+  63:43:49.83
+  52:25:09.01
+  54:49:27.52
+  50:57:52.02
+  64:45:44.87
+  69:30:57.82
+  52:25:09.15
+  54:49:27.11
+  50:57:52.48
+  64:45:44.66
+  69:30:57.58
+  70:30:04.18
+  49:56:51.59
+ 1296:00:00.0
+ 1300:50:38.1
+ 1308:31:35.2
+ 1308:47:53.3
+ 1297:26:00.5
+ 1316:58:11.6
+ 1303:36:05.2
+ 1311:43:49.8
+ 1300:25:09.0
+ 1302:49:27.5
+ 1298:57:52.0
+ 1312:45:44.9
+ 1317:30:57.8
+ 1300:25:09.2
+ 1302:49:27.1
+ 1298:57:52.5
+ 1312:45:44.7
+ 1317:30:57.6
+ 1318:30:04.2
+ 1297:56:51.6
+  16344:00:00
+  16348:50:38
+  16356:31:35
+  16356:47:53
+  16345:26:00
+  16364:58:11
+  16351:36:05
+  16359:43:49
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16348:25:09
+  16350:49:27
+  16346:57:52
+  16360:45:44
+  16365:30:57
+  16366:30:04
+  16345:56:51
+  00:00:00.00
+ -04:50:38.12
+ -12:31:35.23
+ -12:47:53.35
+ -01:26:00.46
+ -20:58:11.57
+ -07:36:05.19
+ -15:43:49.83
+ -04:25:09.01
+ -06:49:27.52
+ -02:57:52.02
+ -16:45:44.87
+ -21:30:57.82
+ -04:25:09.15
+ -06:49:27.11
+ -02:57:52.48
+ -16:45:44.66
+ -21:30:57.58
+ -22:30:04.18
+ -01:56:51.59
+ -24:00:00.00
+ -28:50:38.12
+ -36:31:35.23
+ -36:47:53.35
+ -25:26:00.46
+ -44:58:11.57
+ -31:36:05.19
+ -39:43:49.83
+ -28:25:09.01
+ -30:49:27.52
+ -26:57:52.02
+ -40:45:44.87
+ -45:30:57.82
+ -28:25:09.15
+ -30:49:27.11
+ -26:57:52.48
+ -40:45:44.66
+ -45:30:57.58
+ -46:30:04.18
+ -25:56:51.59
+ -48:00:00.00
+ -52:50:38.12
+ -60:31:35.23
+ -60:47:53.35
+ -49:26:00.46
+ -68:58:11.57
+ -55:36:05.19
+ -63:43:49.83
+ -52:25:09.01
+ -54:49:27.52
+ -50:57:52.02
+ -64:45:44.87
+ -69:30:57.82
+ -52:25:09.15
+ -54:49:27.11
+ -50:57:52.48
+ -64:45:44.66
+ -69:30:57.58
+ -70:30:04.18
+ -49:56:51.59
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
+  -1308:47:53
+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
+  -1311:43:49
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time12.3.txt b/rust/pspp/src/format/testdata/display/time12.3.txt
new file mode 100644
index 0000000000..66fff2132f
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time12.3.txt
@@ -0,0 +1,1614 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
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+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
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+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
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+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
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+   -16344:00
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+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
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+   -16346:57
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+   -16365:30
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
+     20:58:11
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+     26:57:52
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+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
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+ -16345:26:00
+ -16364:58:11
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+ -16359:43:49
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+ -16360:45:44
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+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
+   00:00:00.0
+   04:50:38.1
+   12:31:35.2
+   12:47:53.3
+   01:26:00.5
+   20:58:11.6
+   07:36:05.2
+   15:43:49.8
+   04:25:09.0
+   06:49:27.5
+   02:57:52.0
+   16:45:44.9
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+   04:25:09.2
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+   16:45:44.7
+   21:30:57.6
+   22:30:04.2
+   01:56:51.6
+   24:00:00.0
+   28:50:38.1
+   36:31:35.2
+   36:47:53.3
+   25:26:00.5
+   44:58:11.6
+   31:36:05.2
+   39:43:49.8
+   28:25:09.0
+   30:49:27.5
+   26:57:52.0
+   40:45:44.9
+   45:30:57.8
+   28:25:09.2
+   30:49:27.1
+   26:57:52.5
+   40:45:44.7
+   45:30:57.6
+   46:30:04.2
+   25:56:51.6
+   48:00:00.0
+   52:50:38.1
+   60:31:35.2
+   60:47:53.3
+   49:26:00.5
+   68:58:11.6
+   55:36:05.2
+   63:43:49.8
+   52:25:09.0
+   54:49:27.5
+   50:57:52.0
+   64:45:44.9
+   69:30:57.8
+   52:25:09.2
+   54:49:27.1
+   50:57:52.5
+   64:45:44.7
+   69:30:57.6
+   70:30:04.2
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+ 1296:00:00.0
+ 1300:50:38.1
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+ 1300:25:09.2
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+ 1312:45:44.7
+ 1317:30:57.6
+ 1318:30:04.2
+ 1297:56:51.6
+  16344:00:00
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+  16359:43:49
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+  -04:25:09.0
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+  -02:57:52.0
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+  -04:25:09.2
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+  -02:57:52.5
+  -16:45:44.7
+  -21:30:57.6
+  -22:30:04.2
+  -01:56:51.6
+  -24:00:00.0
+  -28:50:38.1
+  -36:31:35.2
+  -36:47:53.3
+  -25:26:00.5
+  -44:58:11.6
+  -31:36:05.2
+  -39:43:49.8
+  -28:25:09.0
+  -30:49:27.5
+  -26:57:52.0
+  -40:45:44.9
+  -45:30:57.8
+  -28:25:09.2
+  -30:49:27.1
+  -26:57:52.5
+  -40:45:44.7
+  -45:30:57.6
+  -46:30:04.2
+  -25:56:51.6
+  -48:00:00.0
+  -52:50:38.1
+  -60:31:35.2
+  -60:47:53.3
+  -49:26:00.5
+  -68:58:11.6
+  -55:36:05.2
+  -63:43:49.8
+  -52:25:09.0
+  -54:49:27.5
+  -50:57:52.0
+  -64:45:44.9
+  -69:30:57.8
+  -52:25:09.2
+  -54:49:27.1
+  -50:57:52.5
+  -64:45:44.7
+  -69:30:57.6
+  -70:30:04.2
+  -49:56:51.6
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
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+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
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+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
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+ -16359:43:49
+ -16348:25:09
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+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
+  00:00:00.00
+  04:50:38.12
+  12:31:35.23
+  12:47:53.35
+  01:26:00.46
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+  07:36:05.19
+  15:43:49.83
+  04:25:09.01
+  06:49:27.52
+  02:57:52.02
+  16:45:44.87
+  21:30:57.82
+  04:25:09.15
+  06:49:27.11
+  02:57:52.48
+  16:45:44.66
+  21:30:57.58
+  22:30:04.18
+  01:56:51.59
+  24:00:00.00
+  28:50:38.12
+  36:31:35.23
+  36:47:53.35
+  25:26:00.46
+  44:58:11.57
+  31:36:05.19
+  39:43:49.83
+  28:25:09.01
+  30:49:27.52
+  26:57:52.02
+  40:45:44.87
+  45:30:57.82
+  28:25:09.15
+  30:49:27.11
+  26:57:52.48
+  40:45:44.66
+  45:30:57.58
+  46:30:04.18
+  25:56:51.59
+  48:00:00.00
+  52:50:38.12
+  60:31:35.23
+  60:47:53.35
+  49:26:00.46
+  68:58:11.57
+  55:36:05.19
+  63:43:49.83
+  52:25:09.01
+  54:49:27.52
+  50:57:52.02
+  64:45:44.87
+  69:30:57.82
+  52:25:09.15
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+  50:57:52.48
+  64:45:44.66
+  69:30:57.58
+  70:30:04.18
+  49:56:51.59
+ 1296:00:00.0
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+ 1308:31:35.2
+ 1308:47:53.3
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+ 1318:30:04.2
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+  16345:26:00
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+  16359:43:49
+  16348:25:09
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+ -04:25:09.15
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+ -16:45:44.66
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+ -22:30:04.18
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+ -36:47:53.35
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+ -45:30:57.58
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+ -50:57:52.48
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+ -69:30:57.58
+ -70:30:04.18
+ -49:56:51.59
+  -1296:00:00
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+  -1308:31:35
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+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
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+ -16344:00:00
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+ -16348:25:09
+ -16350:49:27
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+ -16360:45:44
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+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.3.out], [0], [dnl
+ 00:00:00.000
+ 04:50:38.123
+ 12:31:35.235
+ 12:47:53.345
+ 01:26:00.456
+ 20:58:11.567
+ 07:36:05.190
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+ 04:25:09.013
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+ 02:57:52.016
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+ 21:30:57.820
+ 04:25:09.154
+ 06:49:27.105
+ 02:57:52.482
+ 16:45:44.658
+ 21:30:57.582
+ 22:30:04.183
+ 01:56:51.593
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+ 28:50:38.123
+ 36:31:35.235
+ 36:47:53.345
+ 25:26:00.456
+ 44:58:11.567
+ 31:36:05.190
+ 39:43:49.831
+ 28:25:09.013
+ 30:49:27.524
+ 26:57:52.016
+ 40:45:44.865
+ 45:30:57.820
+ 28:25:09.154
+ 30:49:27.105
+ 26:57:52.482
+ 40:45:44.658
+ 45:30:57.582
+ 46:30:04.183
+ 25:56:51.593
+ 48:00:00.000
+ 52:50:38.123
+ 60:31:35.235
+ 60:47:53.345
+ 49:26:00.456
+ 68:58:11.567
+ 55:36:05.190
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+ 52:25:09.013
+ 54:49:27.524
+ 50:57:52.016
+ 64:45:44.865
+ 69:30:57.820
+ 52:25:09.154
+ 54:49:27.105
+ 50:57:52.482
+ 64:45:44.658
+ 69:30:57.582
+ 70:30:04.183
+ 49:56:51.593
+ 1296:00:00.0
+ 1300:50:38.1
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+ 1308:47:53.3
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+ 1316:58:11.6
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+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
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+ -16346:57:52
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+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time12.txt b/rust/pspp/src/format/testdata/display/time12.txt
new file mode 100644
index 0000000000..95a612ef84
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time12.txt
@@ -0,0 +1,1008 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
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+ 40:45:44.9
+ 45:30:57.8
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+ 1318:30:04
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+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
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+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
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+  -28:25:09
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+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
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+    04:50:38
+    12:31:35
+    12:47:53
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+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+  12:31:35.2
+  12:47:53.3
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 12:31:35.23
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+   -16344:00
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+   -16364:58
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+   -16359:43
+   -16348:25
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+   -16365:30
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
+     20:58:11
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+     26:57:52
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+    -55:36:05
+    -63:43:49
+    -52:25:09
+    -54:49:27
+    -50:57:52
+    -64:45:44
+    -69:30:57
+    -52:25:09
+    -54:49:27
+    -50:57:52
+    -64:45:44
+    -69:30:57
+    -70:30:04
+    -49:56:51
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
+  -1308:47:53
+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
+  -1311:43:49
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time13.1.txt b/rust/pspp/src/format/testdata/display/time13.1.txt
new file mode 100644
index 0000000000..bced8cc009
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time13.1.txt
@@ -0,0 +1,2018 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
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+ 16351:36:05
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+ 16348:25:09
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+ 16346:57:52
+ 16360:45:44
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+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
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+   -16360:45
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+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
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+ -16346:57:52
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+])
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+ -16365:30:57
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+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+ -16345:56:51
+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+ -28:50:38.12
+ -36:31:35.23
+ -36:47:53.35
+ -25:26:00.46
+ -44:58:11.57
+ -31:36:05.19
+ -39:43:49.83
+ -28:25:09.01
+ -30:49:27.52
+ -26:57:52.02
+ -40:45:44.87
+ -45:30:57.82
+ -28:25:09.15
+ -30:49:27.11
+ -26:57:52.48
+ -40:45:44.66
+ -45:30:57.58
+ -46:30:04.18
+ -25:56:51.59
+ -48:00:00.00
+ -52:50:38.12
+ -60:31:35.23
+ -60:47:53.35
+ -49:26:00.46
+ -68:58:11.57
+ -55:36:05.19
+ -63:43:49.83
+ -52:25:09.01
+ -54:49:27.52
+ -50:57:52.02
+ -64:45:44.87
+ -69:30:57.82
+ -52:25:09.15
+ -54:49:27.11
+ -50:57:52.48
+ -64:45:44.66
+ -69:30:57.58
+ -70:30:04.18
+ -49:56:51.59
+  -1296:00:00
+  -1300:50:38
+  -1308:31:35
+  -1308:47:53
+  -1297:26:00
+  -1316:58:11
+  -1303:36:05
+  -1311:43:49
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time13.out], [0], [dnl
+      00:00:00
+      04:50:38
+      12:31:35
+      12:47:53
+      01:26:00
+      20:58:11
+      07:36:05
+      15:43:49
+      04:25:09
+      06:49:27
+      02:57:52
+      16:45:44
+      21:30:57
+      04:25:09
+      06:49:27
+      02:57:52
+      16:45:44
+      21:30:57
+      22:30:04
+      01:56:51
+      24:00:00
+      28:50:38
+      36:31:35
+      36:47:53
+      25:26:00
+      44:58:11
+      31:36:05
+      39:43:49
+      28:25:09
+      30:49:27
+      26:57:52
+      40:45:44
+      45:30:57
+      28:25:09
+      30:49:27
+      26:57:52
+      40:45:44
+      45:30:57
+      46:30:04
+      25:56:51
+      48:00:00
+      52:50:38
+      60:31:35
+      60:47:53
+      49:26:00
+      68:58:11
+      55:36:05
+      63:43:49
+      52:25:09
+      54:49:27
+      50:57:52
+      64:45:44
+      69:30:57
+      52:25:09
+      54:49:27
+      50:57:52
+      64:45:44
+      69:30:57
+      70:30:04
+      49:56:51
+    1296:00:00
+    1300:50:38
+    1308:31:35
+    1308:47:53
+    1297:26:00
+    1316:58:11
+    1303:36:05
+    1311:43:49
+    1300:25:09
+    1302:49:27
+    1298:57:52
+    1312:45:44
+    1317:30:57
+    1300:25:09
+    1302:49:27
+    1298:57:52
+    1312:45:44
+    1317:30:57
+    1318:30:04
+    1297:56:51
+   16344:00:00
+   16348:50:38
+   16356:31:35
+   16356:47:53
+   16345:26:00
+   16364:58:11
+   16351:36:05
+   16359:43:49
+   16348:25:09
+   16350:49:27
+   16346:57:52
+   16360:45:44
+   16365:30:57
+   16348:25:09
+   16350:49:27
+   16346:57:52
+   16360:45:44
+   16365:30:57
+   16366:30:04
+   16345:56:51
+      00:00:00
+     -04:50:38
+     -12:31:35
+     -12:47:53
+     -01:26:00
+     -20:58:11
+     -07:36:05
+     -15:43:49
+     -04:25:09
+     -06:49:27
+     -02:57:52
+     -16:45:44
+     -21:30:57
+     -04:25:09
+     -06:49:27
+     -02:57:52
+     -16:45:44
+     -21:30:57
+     -22:30:04
+     -01:56:51
+     -24:00:00
+     -28:50:38
+     -36:31:35
+     -36:47:53
+     -25:26:00
+     -44:58:11
+     -31:36:05
+     -39:43:49
+     -28:25:09
+     -30:49:27
+     -26:57:52
+     -40:45:44
+     -45:30:57
+     -28:25:09
+     -30:49:27
+     -26:57:52
+     -40:45:44
+     -45:30:57
+     -46:30:04
+     -25:56:51
+     -48:00:00
+     -52:50:38
+     -60:31:35
+     -60:47:53
+     -49:26:00
+     -68:58:11
+     -55:36:05
+     -63:43:49
+     -52:25:09
+     -54:49:27
+     -50:57:52
+     -64:45:44
+     -69:30:57
+     -52:25:09
+     -54:49:27
+     -50:57:52
+     -64:45:44
+     -69:30:57
+     -70:30:04
+     -49:56:51
+   -1296:00:00
+   -1300:50:38
+   -1308:31:35
+   -1308:47:53
+   -1297:26:00
+   -1316:58:11
+   -1303:36:05
+   -1311:43:49
+   -1300:25:09
+   -1302:49:27
+   -1298:57:52
+   -1312:45:44
+   -1317:30:57
+   -1300:25:09
+   -1302:49:27
+   -1298:57:52
+   -1312:45:44
+   -1317:30:57
+   -1318:30:04
+   -1297:56:51
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
+])
+AT_CHECK([cat time13.1.out], [0], [dnl
+    00:00:00.0
+    04:50:38.1
+    12:31:35.2
+    12:47:53.3
+    01:26:00.5
+    20:58:11.6
+    07:36:05.2
+    15:43:49.8
+    04:25:09.0
+    06:49:27.5
+    02:57:52.0
+    16:45:44.9
+    21:30:57.8
+    04:25:09.2
+    06:49:27.1
+    02:57:52.5
+    16:45:44.7
+    21:30:57.6
+    22:30:04.2
+    01:56:51.6
+    24:00:00.0
+    28:50:38.1
+    36:31:35.2
+    36:47:53.3
+    25:26:00.5
+    44:58:11.6
+    31:36:05.2
+    39:43:49.8
+    28:25:09.0
+    30:49:27.5
+    26:57:52.0
+    40:45:44.9
+    45:30:57.8
+    28:25:09.2
+    30:49:27.1
+    26:57:52.5
+    40:45:44.7
+    45:30:57.6
+    46:30:04.2
+    25:56:51.6
+    48:00:00.0
+    52:50:38.1
+    60:31:35.2
+    60:47:53.3
+    49:26:00.5
+    68:58:11.6
+    55:36:05.2
+    63:43:49.8
+    52:25:09.0
+    54:49:27.5
+    50:57:52.0
+    64:45:44.9
+    69:30:57.8
+    52:25:09.2
+    54:49:27.1
+    50:57:52.5
+    64:45:44.7
+    69:30:57.6
+    70:30:04.2
+    49:56:51.6
+  1296:00:00.0
+  1300:50:38.1
+  1308:31:35.2
+  1308:47:53.3
+  1297:26:00.5
+  1316:58:11.6
+  1303:36:05.2
+  1311:43:49.8
+  1300:25:09.0
+  1302:49:27.5
+  1298:57:52.0
+  1312:45:44.9
+  1317:30:57.8
+  1300:25:09.2
+  1302:49:27.1
+  1298:57:52.5
+  1312:45:44.7
+  1317:30:57.6
+  1318:30:04.2
+  1297:56:51.6
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+    00:00:00.0
+   -04:50:38.1
+   -12:31:35.2
+   -12:47:53.3
+   -01:26:00.5
+   -20:58:11.6
+   -07:36:05.2
+   -15:43:49.8
+   -04:25:09.0
+   -06:49:27.5
+   -02:57:52.0
+   -16:45:44.9
+   -21:30:57.8
+   -04:25:09.2
+   -06:49:27.1
+   -02:57:52.5
+   -16:45:44.7
+   -21:30:57.6
+   -22:30:04.2
+   -01:56:51.6
+   -24:00:00.0
+   -28:50:38.1
+   -36:31:35.2
+   -36:47:53.3
+   -25:26:00.5
+   -44:58:11.6
+   -31:36:05.2
+   -39:43:49.8
+   -28:25:09.0
+   -30:49:27.5
+   -26:57:52.0
+   -40:45:44.9
+   -45:30:57.8
+   -28:25:09.2
+   -30:49:27.1
+   -26:57:52.5
+   -40:45:44.7
+   -45:30:57.6
+   -46:30:04.2
+   -25:56:51.6
+   -48:00:00.0
+   -52:50:38.1
+   -60:31:35.2
+   -60:47:53.3
+   -49:26:00.5
+   -68:58:11.6
+   -55:36:05.2
+   -63:43:49.8
+   -52:25:09.0
+   -54:49:27.5
+   -50:57:52.0
+   -64:45:44.9
+   -69:30:57.8
+   -52:25:09.2
+   -54:49:27.1
+   -50:57:52.5
+   -64:45:44.7
+   -69:30:57.6
+   -70:30:04.2
+   -49:56:51.6
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time13.2.txt b/rust/pspp/src/format/testdata/display/time13.2.txt
new file mode 100644
index 0000000000..5acbefc1cf
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time13.2.txt
@@ -0,0 +1,2220 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
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+   -16360:45
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+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
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+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+   -16346:57
+   -16360:45
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+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+])
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+])
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+])
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+])
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+  1308:47:53.3
+  1297:26:00.5
+  1316:58:11.6
+  1303:36:05.2
+  1311:43:49.8
+  1300:25:09.0
+  1302:49:27.5
+  1298:57:52.0
+  1312:45:44.9
+  1317:30:57.8
+  1300:25:09.2
+  1302:49:27.1
+  1298:57:52.5
+  1312:45:44.7
+  1317:30:57.6
+  1318:30:04.2
+  1297:56:51.6
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+    00:00:00.0
+   -04:50:38.1
+   -12:31:35.2
+   -12:47:53.3
+   -01:26:00.5
+   -20:58:11.6
+   -07:36:05.2
+   -15:43:49.8
+   -04:25:09.0
+   -06:49:27.5
+   -02:57:52.0
+   -16:45:44.9
+   -21:30:57.8
+   -04:25:09.2
+   -06:49:27.1
+   -02:57:52.5
+   -16:45:44.7
+   -21:30:57.6
+   -22:30:04.2
+   -01:56:51.6
+   -24:00:00.0
+   -28:50:38.1
+   -36:31:35.2
+   -36:47:53.3
+   -25:26:00.5
+   -44:58:11.6
+   -31:36:05.2
+   -39:43:49.8
+   -28:25:09.0
+   -30:49:27.5
+   -26:57:52.0
+   -40:45:44.9
+   -45:30:57.8
+   -28:25:09.2
+   -30:49:27.1
+   -26:57:52.5
+   -40:45:44.7
+   -45:30:57.6
+   -46:30:04.2
+   -25:56:51.6
+   -48:00:00.0
+   -52:50:38.1
+   -60:31:35.2
+   -60:47:53.3
+   -49:26:00.5
+   -68:58:11.6
+   -55:36:05.2
+   -63:43:49.8
+   -52:25:09.0
+   -54:49:27.5
+   -50:57:52.0
+   -64:45:44.9
+   -69:30:57.8
+   -52:25:09.2
+   -54:49:27.1
+   -50:57:52.5
+   -64:45:44.7
+   -69:30:57.6
+   -70:30:04.2
+   -49:56:51.6
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
+])
+AT_CHECK([cat time13.2.out], [0], [dnl
+   00:00:00.00
+   04:50:38.12
+   12:31:35.23
+   12:47:53.35
+   01:26:00.46
+   20:58:11.57
+   07:36:05.19
+   15:43:49.83
+   04:25:09.01
+   06:49:27.52
+   02:57:52.02
+   16:45:44.87
+   21:30:57.82
+   04:25:09.15
+   06:49:27.11
+   02:57:52.48
+   16:45:44.66
+   21:30:57.58
+   22:30:04.18
+   01:56:51.59
+   24:00:00.00
+   28:50:38.12
+   36:31:35.23
+   36:47:53.35
+   25:26:00.46
+   44:58:11.57
+   31:36:05.19
+   39:43:49.83
+   28:25:09.01
+   30:49:27.52
+   26:57:52.02
+   40:45:44.87
+   45:30:57.82
+   28:25:09.15
+   30:49:27.11
+   26:57:52.48
+   40:45:44.66
+   45:30:57.58
+   46:30:04.18
+   25:56:51.59
+   48:00:00.00
+   52:50:38.12
+   60:31:35.23
+   60:47:53.35
+   49:26:00.46
+   68:58:11.57
+   55:36:05.19
+   63:43:49.83
+   52:25:09.01
+   54:49:27.52
+   50:57:52.02
+   64:45:44.87
+   69:30:57.82
+   52:25:09.15
+   54:49:27.11
+   50:57:52.48
+   64:45:44.66
+   69:30:57.58
+   70:30:04.18
+   49:56:51.59
+ 1296:00:00.00
+ 1300:50:38.12
+ 1308:31:35.23
+ 1308:47:53.35
+ 1297:26:00.46
+ 1316:58:11.57
+ 1303:36:05.19
+ 1311:43:49.83
+ 1300:25:09.01
+ 1302:49:27.52
+ 1298:57:52.02
+ 1312:45:44.87
+ 1317:30:57.82
+ 1300:25:09.15
+ 1302:49:27.11
+ 1298:57:52.48
+ 1312:45:44.66
+ 1317:30:57.58
+ 1318:30:04.18
+ 1297:56:51.59
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+   00:00:00.00
+  -04:50:38.12
+  -12:31:35.23
+  -12:47:53.35
+  -01:26:00.46
+  -20:58:11.57
+  -07:36:05.19
+  -15:43:49.83
+  -04:25:09.01
+  -06:49:27.52
+  -02:57:52.02
+  -16:45:44.87
+  -21:30:57.82
+  -04:25:09.15
+  -06:49:27.11
+  -02:57:52.48
+  -16:45:44.66
+  -21:30:57.58
+  -22:30:04.18
+  -01:56:51.59
+  -24:00:00.00
+  -28:50:38.12
+  -36:31:35.23
+  -36:47:53.35
+  -25:26:00.46
+  -44:58:11.57
+  -31:36:05.19
+  -39:43:49.83
+  -28:25:09.01
+  -30:49:27.52
+  -26:57:52.02
+  -40:45:44.87
+  -45:30:57.82
+  -28:25:09.15
+  -30:49:27.11
+  -26:57:52.48
+  -40:45:44.66
+  -45:30:57.58
+  -46:30:04.18
+  -25:56:51.59
+  -48:00:00.00
+  -52:50:38.12
+  -60:31:35.23
+  -60:47:53.35
+  -49:26:00.46
+  -68:58:11.57
+  -55:36:05.19
+  -63:43:49.83
+  -52:25:09.01
+  -54:49:27.52
+  -50:57:52.02
+  -64:45:44.87
+  -69:30:57.82
+  -52:25:09.15
+  -54:49:27.11
+  -50:57:52.48
+  -64:45:44.66
+  -69:30:57.58
+  -70:30:04.18
+  -49:56:51.59
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time13.3.txt b/rust/pspp/src/format/testdata/display/time13.3.txt
new file mode 100644
index 0000000000..edffb072bd
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time13.3.txt
@@ -0,0 +1,2422 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
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+   -16346:57
+   -16360:45
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+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 04:50:38.12
+ 12:31:35.23
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+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+   12:31:35.2
+   12:47:53.3
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
+  00:00:00.00
+  04:50:38.12
+  12:31:35.23
+  12:47:53.35
+  01:26:00.46
+  20:58:11.57
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+])
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+])
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+])
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+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
+])
+AT_CHECK([cat time13.2.out], [0], [dnl
+   00:00:00.00
+   04:50:38.12
+   12:31:35.23
+   12:47:53.35
+   01:26:00.46
+   20:58:11.57
+   07:36:05.19
+   15:43:49.83
+   04:25:09.01
+   06:49:27.52
+   02:57:52.02
+   16:45:44.87
+   21:30:57.82
+   04:25:09.15
+   06:49:27.11
+   02:57:52.48
+   16:45:44.66
+   21:30:57.58
+   22:30:04.18
+   01:56:51.59
+   24:00:00.00
+   28:50:38.12
+   36:31:35.23
+   36:47:53.35
+   25:26:00.46
+   44:58:11.57
+   31:36:05.19
+   39:43:49.83
+   28:25:09.01
+   30:49:27.52
+   26:57:52.02
+   40:45:44.87
+   45:30:57.82
+   28:25:09.15
+   30:49:27.11
+   26:57:52.48
+   40:45:44.66
+   45:30:57.58
+   46:30:04.18
+   25:56:51.59
+   48:00:00.00
+   52:50:38.12
+   60:31:35.23
+   60:47:53.35
+   49:26:00.46
+   68:58:11.57
+   55:36:05.19
+   63:43:49.83
+   52:25:09.01
+   54:49:27.52
+   50:57:52.02
+   64:45:44.87
+   69:30:57.82
+   52:25:09.15
+   54:49:27.11
+   50:57:52.48
+   64:45:44.66
+   69:30:57.58
+   70:30:04.18
+   49:56:51.59
+ 1296:00:00.00
+ 1300:50:38.12
+ 1308:31:35.23
+ 1308:47:53.35
+ 1297:26:00.46
+ 1316:58:11.57
+ 1303:36:05.19
+ 1311:43:49.83
+ 1300:25:09.01
+ 1302:49:27.52
+ 1298:57:52.02
+ 1312:45:44.87
+ 1317:30:57.82
+ 1300:25:09.15
+ 1302:49:27.11
+ 1298:57:52.48
+ 1312:45:44.66
+ 1317:30:57.58
+ 1318:30:04.18
+ 1297:56:51.59
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+   00:00:00.00
+  -04:50:38.12
+  -12:31:35.23
+  -12:47:53.35
+  -01:26:00.46
+  -20:58:11.57
+  -07:36:05.19
+  -15:43:49.83
+  -04:25:09.01
+  -06:49:27.52
+  -02:57:52.02
+  -16:45:44.87
+  -21:30:57.82
+  -04:25:09.15
+  -06:49:27.11
+  -02:57:52.48
+  -16:45:44.66
+  -21:30:57.58
+  -22:30:04.18
+  -01:56:51.59
+  -24:00:00.00
+  -28:50:38.12
+  -36:31:35.23
+  -36:47:53.35
+  -25:26:00.46
+  -44:58:11.57
+  -31:36:05.19
+  -39:43:49.83
+  -28:25:09.01
+  -30:49:27.52
+  -26:57:52.02
+  -40:45:44.87
+  -45:30:57.82
+  -28:25:09.15
+  -30:49:27.11
+  -26:57:52.48
+  -40:45:44.66
+  -45:30:57.58
+  -46:30:04.18
+  -25:56:51.59
+  -48:00:00.00
+  -52:50:38.12
+  -60:31:35.23
+  -60:47:53.35
+  -49:26:00.46
+  -68:58:11.57
+  -55:36:05.19
+  -63:43:49.83
+  -52:25:09.01
+  -54:49:27.52
+  -50:57:52.02
+  -64:45:44.87
+  -69:30:57.82
+  -52:25:09.15
+  -54:49:27.11
+  -50:57:52.48
+  -64:45:44.66
+  -69:30:57.58
+  -70:30:04.18
+  -49:56:51.59
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
+])
+AT_CHECK([cat time13.3.out], [0], [dnl
+  00:00:00.000
+  04:50:38.123
+  12:31:35.235
+  12:47:53.345
+  01:26:00.456
+  20:58:11.567
+  07:36:05.190
+  15:43:49.831
+  04:25:09.013
+  06:49:27.524
+  02:57:52.016
+  16:45:44.865
+  21:30:57.820
+  04:25:09.154
+  06:49:27.105
+  02:57:52.482
+  16:45:44.658
+  21:30:57.582
+  22:30:04.183
+  01:56:51.593
+  24:00:00.000
+  28:50:38.123
+  36:31:35.235
+  36:47:53.345
+  25:26:00.456
+  44:58:11.567
+  31:36:05.190
+  39:43:49.831
+  28:25:09.013
+  30:49:27.524
+  26:57:52.016
+  40:45:44.865
+  45:30:57.820
+  28:25:09.154
+  30:49:27.105
+  26:57:52.482
+  40:45:44.658
+  45:30:57.582
+  46:30:04.183
+  25:56:51.593
+  48:00:00.000
+  52:50:38.123
+  60:31:35.235
+  60:47:53.345
+  49:26:00.456
+  68:58:11.567
+  55:36:05.190
+  63:43:49.831
+  52:25:09.013
+  54:49:27.524
+  50:57:52.016
+  64:45:44.865
+  69:30:57.820
+  52:25:09.154
+  54:49:27.105
+  50:57:52.482
+  64:45:44.658
+  69:30:57.582
+  70:30:04.183
+  49:56:51.593
+ 1296:00:00.00
+ 1300:50:38.12
+ 1308:31:35.23
+ 1308:47:53.35
+ 1297:26:00.46
+ 1316:58:11.57
+ 1303:36:05.19
+ 1311:43:49.83
+ 1300:25:09.01
+ 1302:49:27.52
+ 1298:57:52.02
+ 1312:45:44.87
+ 1317:30:57.82
+ 1300:25:09.15
+ 1302:49:27.11
+ 1298:57:52.48
+ 1312:45:44.66
+ 1317:30:57.58
+ 1318:30:04.18
+ 1297:56:51.59
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+  00:00:00.000
+ -04:50:38.123
+ -12:31:35.235
+ -12:47:53.345
+ -01:26:00.456
+ -20:58:11.567
+ -07:36:05.190
+ -15:43:49.831
+ -04:25:09.013
+ -06:49:27.524
+ -02:57:52.016
+ -16:45:44.865
+ -21:30:57.820
+ -04:25:09.154
+ -06:49:27.105
+ -02:57:52.482
+ -16:45:44.658
+ -21:30:57.582
+ -22:30:04.183
+ -01:56:51.593
+ -24:00:00.000
+ -28:50:38.123
+ -36:31:35.235
+ -36:47:53.345
+ -25:26:00.456
+ -44:58:11.567
+ -31:36:05.190
+ -39:43:49.831
+ -28:25:09.013
+ -30:49:27.524
+ -26:57:52.016
+ -40:45:44.865
+ -45:30:57.820
+ -28:25:09.154
+ -30:49:27.105
+ -26:57:52.482
+ -40:45:44.658
+ -45:30:57.582
+ -46:30:04.183
+ -25:56:51.593
+ -48:00:00.000
+ -52:50:38.123
+ -60:31:35.235
+ -60:47:53.345
+ -49:26:00.456
+ -68:58:11.567
+ -55:36:05.190
+ -63:43:49.831
+ -52:25:09.013
+ -54:49:27.524
+ -50:57:52.016
+ -64:45:44.865
+ -69:30:57.820
+ -52:25:09.154
+ -54:49:27.105
+ -50:57:52.482
+ -64:45:44.658
+ -69:30:57.582
+ -70:30:04.183
+ -49:56:51.593
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time13.4.txt b/rust/pspp/src/format/testdata/display/time13.4.txt
new file mode 100644
index 0000000000..987573a17b
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time13.4.txt
@@ -0,0 +1,2624 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
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+ 16356:31:35
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+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
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+   -39:43:49
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+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     12:47:53
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+])
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+])
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+])
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+])
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+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time13.txt b/rust/pspp/src/format/testdata/display/time13.txt
new file mode 100644
index 0000000000..c7e3b0a068
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time13.txt
@@ -0,0 +1,1816 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
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+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1300:25:09
+  -1302:49:27
+  -1298:57:52
+  -1312:45:44
+  -1317:30:57
+  -1318:30:04
+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
+ -16351:36:05
+ -16359:43:49
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time13.out], [0], [dnl
+      00:00:00
+      04:50:38
+      12:31:35
+      12:47:53
+      01:26:00
+      20:58:11
+      07:36:05
+      15:43:49
+      04:25:09
+      06:49:27
+      02:57:52
+      16:45:44
+      21:30:57
+      04:25:09
+      06:49:27
+      02:57:52
+      16:45:44
+      21:30:57
+      22:30:04
+      01:56:51
+      24:00:00
+      28:50:38
+      36:31:35
+      36:47:53
+      25:26:00
+      44:58:11
+      31:36:05
+      39:43:49
+      28:25:09
+      30:49:27
+      26:57:52
+      40:45:44
+      45:30:57
+      28:25:09
+      30:49:27
+      26:57:52
+      40:45:44
+      45:30:57
+      46:30:04
+      25:56:51
+      48:00:00
+      52:50:38
+      60:31:35
+      60:47:53
+      49:26:00
+      68:58:11
+      55:36:05
+      63:43:49
+      52:25:09
+      54:49:27
+      50:57:52
+      64:45:44
+      69:30:57
+      52:25:09
+      54:49:27
+      50:57:52
+      64:45:44
+      69:30:57
+      70:30:04
+      49:56:51
+    1296:00:00
+    1300:50:38
+    1308:31:35
+    1308:47:53
+    1297:26:00
+    1316:58:11
+    1303:36:05
+    1311:43:49
+    1300:25:09
+    1302:49:27
+    1298:57:52
+    1312:45:44
+    1317:30:57
+    1300:25:09
+    1302:49:27
+    1298:57:52
+    1312:45:44
+    1317:30:57
+    1318:30:04
+    1297:56:51
+   16344:00:00
+   16348:50:38
+   16356:31:35
+   16356:47:53
+   16345:26:00
+   16364:58:11
+   16351:36:05
+   16359:43:49
+   16348:25:09
+   16350:49:27
+   16346:57:52
+   16360:45:44
+   16365:30:57
+   16348:25:09
+   16350:49:27
+   16346:57:52
+   16360:45:44
+   16365:30:57
+   16366:30:04
+   16345:56:51
+      00:00:00
+     -04:50:38
+     -12:31:35
+     -12:47:53
+     -01:26:00
+     -20:58:11
+     -07:36:05
+     -15:43:49
+     -04:25:09
+     -06:49:27
+     -02:57:52
+     -16:45:44
+     -21:30:57
+     -04:25:09
+     -06:49:27
+     -02:57:52
+     -16:45:44
+     -21:30:57
+     -22:30:04
+     -01:56:51
+     -24:00:00
+     -28:50:38
+     -36:31:35
+     -36:47:53
+     -25:26:00
+     -44:58:11
+     -31:36:05
+     -39:43:49
+     -28:25:09
+     -30:49:27
+     -26:57:52
+     -40:45:44
+     -45:30:57
+     -28:25:09
+     -30:49:27
+     -26:57:52
+     -40:45:44
+     -45:30:57
+     -46:30:04
+     -25:56:51
+     -48:00:00
+     -52:50:38
+     -60:31:35
+     -60:47:53
+     -49:26:00
+     -68:58:11
+     -55:36:05
+     -63:43:49
+     -52:25:09
+     -54:49:27
+     -50:57:52
+     -64:45:44
+     -69:30:57
+     -52:25:09
+     -54:49:27
+     -50:57:52
+     -64:45:44
+     -69:30:57
+     -70:30:04
+     -49:56:51
+   -1296:00:00
+   -1300:50:38
+   -1308:31:35
+   -1308:47:53
+   -1297:26:00
+   -1316:58:11
+   -1303:36:05
+   -1311:43:49
+   -1300:25:09
+   -1302:49:27
+   -1298:57:52
+   -1312:45:44
+   -1317:30:57
+   -1300:25:09
+   -1302:49:27
+   -1298:57:52
+   -1312:45:44
+   -1317:30:57
+   -1318:30:04
+   -1297:56:51
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time14.1.txt b/rust/pspp/src/format/testdata/display/time14.1.txt
new file mode 100644
index 0000000000..f343e0b92b
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.1.txt
@@ -0,0 +1,3028 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
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+   -16360:45
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+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
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+ -16346:57:52
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+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+  12:31:35.23
+  12:47:53.35
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+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+])
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+])
+AT_CHECK([cat time13.2.out], [0], [dnl
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+])
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+])
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+])
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+])
+AT_CHECK([cat time14.1.out], [0], [dnl
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+     54:49:27.5
+     50:57:52.0
+     64:45:44.9
+     69:30:57.8
+     52:25:09.2
+     54:49:27.1
+     50:57:52.5
+     64:45:44.7
+     69:30:57.6
+     70:30:04.2
+     49:56:51.6
+   1296:00:00.0
+   1300:50:38.1
+   1308:31:35.2
+   1308:47:53.3
+   1297:26:00.5
+   1316:58:11.6
+   1303:36:05.2
+   1311:43:49.8
+   1300:25:09.0
+   1302:49:27.5
+   1298:57:52.0
+   1312:45:44.9
+   1317:30:57.8
+   1300:25:09.2
+   1302:49:27.1
+   1298:57:52.5
+   1312:45:44.7
+   1317:30:57.6
+   1318:30:04.2
+   1297:56:51.6
+  16344:00:00.0
+  16348:50:38.1
+  16356:31:35.2
+  16356:47:53.3
+  16345:26:00.5
+  16364:58:11.6
+  16351:36:05.2
+  16359:43:49.8
+  16348:25:09.0
+  16350:49:27.5
+  16346:57:52.0
+  16360:45:44.9
+  16365:30:57.8
+  16348:25:09.2
+  16350:49:27.1
+  16346:57:52.5
+  16360:45:44.7
+  16365:30:57.6
+  16366:30:04.2
+  16345:56:51.6
+     00:00:00.0
+    -04:50:38.1
+    -12:31:35.2
+    -12:47:53.3
+    -01:26:00.5
+    -20:58:11.6
+    -07:36:05.2
+    -15:43:49.8
+    -04:25:09.0
+    -06:49:27.5
+    -02:57:52.0
+    -16:45:44.9
+    -21:30:57.8
+    -04:25:09.2
+    -06:49:27.1
+    -02:57:52.5
+    -16:45:44.7
+    -21:30:57.6
+    -22:30:04.2
+    -01:56:51.6
+    -24:00:00.0
+    -28:50:38.1
+    -36:31:35.2
+    -36:47:53.3
+    -25:26:00.5
+    -44:58:11.6
+    -31:36:05.2
+    -39:43:49.8
+    -28:25:09.0
+    -30:49:27.5
+    -26:57:52.0
+    -40:45:44.9
+    -45:30:57.8
+    -28:25:09.2
+    -30:49:27.1
+    -26:57:52.5
+    -40:45:44.7
+    -45:30:57.6
+    -46:30:04.2
+    -25:56:51.6
+    -48:00:00.0
+    -52:50:38.1
+    -60:31:35.2
+    -60:47:53.3
+    -49:26:00.5
+    -68:58:11.6
+    -55:36:05.2
+    -63:43:49.8
+    -52:25:09.0
+    -54:49:27.5
+    -50:57:52.0
+    -64:45:44.9
+    -69:30:57.8
+    -52:25:09.2
+    -54:49:27.1
+    -50:57:52.5
+    -64:45:44.7
+    -69:30:57.6
+    -70:30:04.2
+    -49:56:51.6
+  -1296:00:00.0
+  -1300:50:38.1
+  -1308:31:35.2
+  -1308:47:53.3
+  -1297:26:00.5
+  -1316:58:11.6
+  -1303:36:05.2
+  -1311:43:49.8
+  -1300:25:09.0
+  -1302:49:27.5
+  -1298:57:52.0
+  -1312:45:44.9
+  -1317:30:57.8
+  -1300:25:09.2
+  -1302:49:27.1
+  -1298:57:52.5
+  -1312:45:44.7
+  -1317:30:57.6
+  -1318:30:04.2
+  -1297:56:51.6
+ -16344:00:00.0
+ -16348:50:38.1
+ -16356:31:35.2
+ -16356:47:53.3
+ -16345:26:00.5
+ -16364:58:11.6
+ -16351:36:05.2
+ -16359:43:49.8
+ -16348:25:09.0
+ -16350:49:27.5
+ -16346:57:52.0
+ -16360:45:44.9
+ -16365:30:57.8
+ -16348:25:09.2
+ -16350:49:27.1
+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/time14.2.txt b/rust/pspp/src/format/testdata/display/time14.2.txt
new file mode 100644
index 0000000000..e690bf869a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.2.txt
@@ -0,0 +1,3230 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
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+ 16356:31:35
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+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
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+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
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+])
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+])
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+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+ 04:50:38.123
+ 12:31:35.235
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+      04:50:38
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+])
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+])
+AT_CHECK([cat time13.2.out], [0], [dnl
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+])
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+])
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+])
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+])
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+     00:00:00.0
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+    -24:00:00.0
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+    -28:25:09.2
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+    -52:25:09.2
+    -54:49:27.1
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+    -64:45:44.7
+    -69:30:57.6
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+  -1300:25:09.0
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+  -1312:45:44.9
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+  -1302:49:27.1
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+  -1312:45:44.7
+  -1317:30:57.6
+  -1318:30:04.2
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+ -16344:00:00.0
+ -16348:50:38.1
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+ -16356:47:53.3
+ -16345:26:00.5
+ -16364:58:11.6
+ -16351:36:05.2
+ -16359:43:49.8
+ -16348:25:09.0
+ -16350:49:27.5
+ -16346:57:52.0
+ -16360:45:44.9
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+ -16348:25:09.2
+ -16350:49:27.1
+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
+])
+AT_CHECK([cat time14.2.out], [0], [dnl
+    00:00:00.00
+    04:50:38.12
+    12:31:35.23
+    12:47:53.35
+    01:26:00.46
+    20:58:11.57
+    07:36:05.19
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+    06:49:27.52
+    02:57:52.02
+    16:45:44.87
+    21:30:57.82
+    04:25:09.15
+    06:49:27.11
+    02:57:52.48
+    16:45:44.66
+    21:30:57.58
+    22:30:04.18
+    01:56:51.59
+    24:00:00.00
+    28:50:38.12
+    36:31:35.23
+    36:47:53.35
+    25:26:00.46
+    44:58:11.57
+    31:36:05.19
+    39:43:49.83
+    28:25:09.01
+    30:49:27.52
+    26:57:52.02
+    40:45:44.87
+    45:30:57.82
+    28:25:09.15
+    30:49:27.11
+    26:57:52.48
+    40:45:44.66
+    45:30:57.58
+    46:30:04.18
+    25:56:51.59
+    48:00:00.00
+    52:50:38.12
+    60:31:35.23
+    60:47:53.35
+    49:26:00.46
+    68:58:11.57
+    55:36:05.19
+    63:43:49.83
+    52:25:09.01
+    54:49:27.52
+    50:57:52.02
+    64:45:44.87
+    69:30:57.82
+    52:25:09.15
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+    50:57:52.48
+    64:45:44.66
+    69:30:57.58
+    70:30:04.18
+    49:56:51.59
+  1296:00:00.00
+  1300:50:38.12
+  1308:31:35.23
+  1308:47:53.35
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+  1298:57:52.02
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+  1298:57:52.48
+  1312:45:44.66
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+  1318:30:04.18
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+   -02:57:52.48
+   -16:45:44.66
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+   -64:45:44.66
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+ -16344:00:00.0
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+ -16351:36:05.2
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+ -16360:45:44.9
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+ -16348:25:09.2
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+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/time14.3.txt b/rust/pspp/src/format/testdata/display/time14.3.txt
new file mode 100644
index 0000000000..94cdebbaa5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.3.txt
@@ -0,0 +1,3432 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
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+ 68:58:11.6
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+ 63:43:49.8
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+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
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+ 49:56:51.6
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+ 1318:30:04
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+   16344:00
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+   16364:58
+   16351:36
+   16359:43
+   16348:25
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+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
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+  -12:31:35
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+  -01:26:00
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+  -07:36:05
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+  -04:25:09
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+  -04:25:09
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+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
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+  -28:50:38
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+  -30:49:27
+  -26:57:52
+  -40:45:44
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+  -28:25:09
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+  -49:26:00
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+  -55:36:05
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+  -52:25:09
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+  -50:57:52
+  -64:45:44
+  -69:30:57
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+  -54:49:27
+  -50:57:52
+  -64:45:44
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+  -70:30:04
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+   -1296:00
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+   -1308:31
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+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
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+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
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+   -1317:30
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+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
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+    06:49:27
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+    16:45:44
+    21:30:57
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+    16:45:44
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+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
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+    28:25:09
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+    26:57:52
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+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
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+    60:31:35
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+    49:26:00
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+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
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+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
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+  1298:57:52
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+  1302:49:27
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+  1312:45:44
+  1317:30:57
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+ 16346:57:52
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+    00:00:00
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+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
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+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
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+   -44:58:11
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+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
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+   -26:57:52
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+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
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+ -1308:31:35
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+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
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+   -16346:57
+   -16360:45
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+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 04:50:38.12
+ 12:31:35.23
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+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+   12:31:35.2
+   12:47:53.3
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
+  00:00:00.00
+  04:50:38.12
+  12:31:35.23
+  12:47:53.35
+  01:26:00.46
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+  28:25:09.01
+  30:49:27.52
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+])
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+])
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+])
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+])
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+])
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+])
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+])
+AT_CHECK([cat time14.out], [0], [dnl
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+      -28:25:09
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+      -26:57:52
+      -40:45:44
+      -45:30:57
+      -46:30:04
+      -25:56:51
+      -48:00:00
+      -52:50:38
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+      -60:47:53
+      -49:26:00
+      -68:58:11
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+      -63:43:49
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+      -50:57:52
+      -64:45:44
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+      -50:57:52
+      -64:45:44
+      -69:30:57
+      -70:30:04
+      -49:56:51
+    -1296:00:00
+    -1300:50:38
+    -1308:31:35
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+    -1297:26:00
+    -1316:58:11
+    -1303:36:05
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+    -1312:45:44
+    -1317:30:57
+    -1300:25:09
+    -1302:49:27
+    -1298:57:52
+    -1312:45:44
+    -1317:30:57
+    -1318:30:04
+    -1297:56:51
+   -16344:00:00
+   -16348:50:38
+   -16356:31:35
+   -16356:47:53
+   -16345:26:00
+   -16364:58:11
+   -16351:36:05
+   -16359:43:49
+   -16348:25:09
+   -16350:49:27
+   -16346:57:52
+   -16360:45:44
+   -16365:30:57
+   -16348:25:09
+   -16350:49:27
+   -16346:57:52
+   -16360:45:44
+   -16365:30:57
+   -16366:30:04
+   -16345:56:51
+])
+AT_CHECK([cat time14.1.out], [0], [dnl
+     00:00:00.0
+     04:50:38.1
+     12:31:35.2
+     12:47:53.3
+     01:26:00.5
+     20:58:11.6
+     07:36:05.2
+     15:43:49.8
+     04:25:09.0
+     06:49:27.5
+     02:57:52.0
+     16:45:44.9
+     21:30:57.8
+     04:25:09.2
+     06:49:27.1
+     02:57:52.5
+     16:45:44.7
+     21:30:57.6
+     22:30:04.2
+     01:56:51.6
+     24:00:00.0
+     28:50:38.1
+     36:31:35.2
+     36:47:53.3
+     25:26:00.5
+     44:58:11.6
+     31:36:05.2
+     39:43:49.8
+     28:25:09.0
+     30:49:27.5
+     26:57:52.0
+     40:45:44.9
+     45:30:57.8
+     28:25:09.2
+     30:49:27.1
+     26:57:52.5
+     40:45:44.7
+     45:30:57.6
+     46:30:04.2
+     25:56:51.6
+     48:00:00.0
+     52:50:38.1
+     60:31:35.2
+     60:47:53.3
+     49:26:00.5
+     68:58:11.6
+     55:36:05.2
+     63:43:49.8
+     52:25:09.0
+     54:49:27.5
+     50:57:52.0
+     64:45:44.9
+     69:30:57.8
+     52:25:09.2
+     54:49:27.1
+     50:57:52.5
+     64:45:44.7
+     69:30:57.6
+     70:30:04.2
+     49:56:51.6
+   1296:00:00.0
+   1300:50:38.1
+   1308:31:35.2
+   1308:47:53.3
+   1297:26:00.5
+   1316:58:11.6
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+   1300:25:09.0
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+   1298:57:52.0
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+   1300:25:09.2
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+   1298:57:52.5
+   1312:45:44.7
+   1317:30:57.6
+   1318:30:04.2
+   1297:56:51.6
+  16344:00:00.0
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+  16356:47:53.3
+  16345:26:00.5
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+  16351:36:05.2
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+  16348:25:09.0
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+  16360:45:44.9
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+  16348:25:09.2
+  16350:49:27.1
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+     00:00:00.0
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+    -36:47:53.3
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+    -28:25:09.0
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+    -26:57:52.0
+    -40:45:44.9
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+    -28:25:09.2
+    -30:49:27.1
+    -26:57:52.5
+    -40:45:44.7
+    -45:30:57.6
+    -46:30:04.2
+    -25:56:51.6
+    -48:00:00.0
+    -52:50:38.1
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+    -60:47:53.3
+    -49:26:00.5
+    -68:58:11.6
+    -55:36:05.2
+    -63:43:49.8
+    -52:25:09.0
+    -54:49:27.5
+    -50:57:52.0
+    -64:45:44.9
+    -69:30:57.8
+    -52:25:09.2
+    -54:49:27.1
+    -50:57:52.5
+    -64:45:44.7
+    -69:30:57.6
+    -70:30:04.2
+    -49:56:51.6
+  -1296:00:00.0
+  -1300:50:38.1
+  -1308:31:35.2
+  -1308:47:53.3
+  -1297:26:00.5
+  -1316:58:11.6
+  -1303:36:05.2
+  -1311:43:49.8
+  -1300:25:09.0
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+  -1298:57:52.0
+  -1312:45:44.9
+  -1317:30:57.8
+  -1300:25:09.2
+  -1302:49:27.1
+  -1298:57:52.5
+  -1312:45:44.7
+  -1317:30:57.6
+  -1318:30:04.2
+  -1297:56:51.6
+ -16344:00:00.0
+ -16348:50:38.1
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+ -16356:47:53.3
+ -16345:26:00.5
+ -16364:58:11.6
+ -16351:36:05.2
+ -16359:43:49.8
+ -16348:25:09.0
+ -16350:49:27.5
+ -16346:57:52.0
+ -16360:45:44.9
+ -16365:30:57.8
+ -16348:25:09.2
+ -16350:49:27.1
+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
+])
+AT_CHECK([cat time14.2.out], [0], [dnl
+    00:00:00.00
+    04:50:38.12
+    12:31:35.23
+    12:47:53.35
+    01:26:00.46
+    20:58:11.57
+    07:36:05.19
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+    02:57:52.02
+    16:45:44.87
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+    04:25:09.15
+    06:49:27.11
+    02:57:52.48
+    16:45:44.66
+    21:30:57.58
+    22:30:04.18
+    01:56:51.59
+    24:00:00.00
+    28:50:38.12
+    36:31:35.23
+    36:47:53.35
+    25:26:00.46
+    44:58:11.57
+    31:36:05.19
+    39:43:49.83
+    28:25:09.01
+    30:49:27.52
+    26:57:52.02
+    40:45:44.87
+    45:30:57.82
+    28:25:09.15
+    30:49:27.11
+    26:57:52.48
+    40:45:44.66
+    45:30:57.58
+    46:30:04.18
+    25:56:51.59
+    48:00:00.00
+    52:50:38.12
+    60:31:35.23
+    60:47:53.35
+    49:26:00.46
+    68:58:11.57
+    55:36:05.19
+    63:43:49.83
+    52:25:09.01
+    54:49:27.52
+    50:57:52.02
+    64:45:44.87
+    69:30:57.82
+    52:25:09.15
+    54:49:27.11
+    50:57:52.48
+    64:45:44.66
+    69:30:57.58
+    70:30:04.18
+    49:56:51.59
+  1296:00:00.00
+  1300:50:38.12
+  1308:31:35.23
+  1308:47:53.35
+  1297:26:00.46
+  1316:58:11.57
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+  1300:25:09.01
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+  1298:57:52.02
+  1312:45:44.87
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+  1300:25:09.15
+  1302:49:27.11
+  1298:57:52.48
+  1312:45:44.66
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+  1318:30:04.18
+  1297:56:51.59
+ 16344:00:00.00
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+ 16356:47:53.35
+ 16345:26:00.46
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+ 16346:57:52.48
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+    00:00:00.00
+   -04:50:38.12
+   -12:31:35.23
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+   -01:26:00.46
+   -20:58:11.57
+   -07:36:05.19
+   -15:43:49.83
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+   -02:57:52.48
+   -16:45:44.66
+   -21:30:57.58
+   -22:30:04.18
+   -01:56:51.59
+   -24:00:00.00
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+   -36:47:53.35
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+   -44:58:11.57
+   -31:36:05.19
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+   -28:25:09.01
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+   -26:57:52.02
+   -40:45:44.87
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+   -28:25:09.15
+   -30:49:27.11
+   -26:57:52.48
+   -40:45:44.66
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+   -46:30:04.18
+   -25:56:51.59
+   -48:00:00.00
+   -52:50:38.12
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+   -49:26:00.46
+   -68:58:11.57
+   -55:36:05.19
+   -63:43:49.83
+   -52:25:09.01
+   -54:49:27.52
+   -50:57:52.02
+   -64:45:44.87
+   -69:30:57.82
+   -52:25:09.15
+   -54:49:27.11
+   -50:57:52.48
+   -64:45:44.66
+   -69:30:57.58
+   -70:30:04.18
+   -49:56:51.59
+ -1296:00:00.00
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+ -1308:31:35.23
+ -1308:47:53.35
+ -1297:26:00.46
+ -1316:58:11.57
+ -1303:36:05.19
+ -1311:43:49.83
+ -1300:25:09.01
+ -1302:49:27.52
+ -1298:57:52.02
+ -1312:45:44.87
+ -1317:30:57.82
+ -1300:25:09.15
+ -1302:49:27.11
+ -1298:57:52.48
+ -1312:45:44.66
+ -1317:30:57.58
+ -1318:30:04.18
+ -1297:56:51.59
+ -16344:00:00.0
+ -16348:50:38.1
+ -16356:31:35.2
+ -16356:47:53.3
+ -16345:26:00.5
+ -16364:58:11.6
+ -16351:36:05.2
+ -16359:43:49.8
+ -16348:25:09.0
+ -16350:49:27.5
+ -16346:57:52.0
+ -16360:45:44.9
+ -16365:30:57.8
+ -16348:25:09.2
+ -16350:49:27.1
+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
+])
+AT_CHECK([cat time14.3.out], [0], [dnl
+   00:00:00.000
+   04:50:38.123
+   12:31:35.235
+   12:47:53.345
+   01:26:00.456
+   20:58:11.567
+   07:36:05.190
+   15:43:49.831
+   04:25:09.013
+   06:49:27.524
+   02:57:52.016
+   16:45:44.865
+   21:30:57.820
+   04:25:09.154
+   06:49:27.105
+   02:57:52.482
+   16:45:44.658
+   21:30:57.582
+   22:30:04.183
+   01:56:51.593
+   24:00:00.000
+   28:50:38.123
+   36:31:35.235
+   36:47:53.345
+   25:26:00.456
+   44:58:11.567
+   31:36:05.190
+   39:43:49.831
+   28:25:09.013
+   30:49:27.524
+   26:57:52.016
+   40:45:44.865
+   45:30:57.820
+   28:25:09.154
+   30:49:27.105
+   26:57:52.482
+   40:45:44.658
+   45:30:57.582
+   46:30:04.183
+   25:56:51.593
+   48:00:00.000
+   52:50:38.123
+   60:31:35.235
+   60:47:53.345
+   49:26:00.456
+   68:58:11.567
+   55:36:05.190
+   63:43:49.831
+   52:25:09.013
+   54:49:27.524
+   50:57:52.016
+   64:45:44.865
+   69:30:57.820
+   52:25:09.154
+   54:49:27.105
+   50:57:52.482
+   64:45:44.658
+   69:30:57.582
+   70:30:04.183
+   49:56:51.593
+ 1296:00:00.000
+ 1300:50:38.123
+ 1308:31:35.235
+ 1308:47:53.345
+ 1297:26:00.456
+ 1316:58:11.567
+ 1303:36:05.190
+ 1311:43:49.831
+ 1300:25:09.013
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+ 1298:57:52.482
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+ 1317:30:57.582
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+   00:00:00.000
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+  -52:25:09.013
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+  -64:45:44.865
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+  -64:45:44.658
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+  -49:56:51.593
+ -1296:00:00.00
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+ -1308:31:35.23
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+ -1297:26:00.46
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+ -1317:30:57.82
+ -1300:25:09.15
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+ -1298:57:52.48
+ -1312:45:44.66
+ -1317:30:57.58
+ -1318:30:04.18
+ -1297:56:51.59
+ -16344:00:00.0
+ -16348:50:38.1
+ -16356:31:35.2
+ -16356:47:53.3
+ -16345:26:00.5
+ -16364:58:11.6
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+ -16359:43:49.8
+ -16348:25:09.0
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+ -16346:57:52.0
+ -16360:45:44.9
+ -16365:30:57.8
+ -16348:25:09.2
+ -16350:49:27.1
+ -16346:57:52.5
+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/time14.4.txt b/rust/pspp/src/format/testdata/display/time14.4.txt
new file mode 100644
index 0000000000..31d0927e58
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.4.txt
@@ -0,0 +1,3634 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
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+])
+AT_CHECK([cat time11.out], [0], [dnl
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+   -16366:30
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+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+   -16346:57
+   -16360:45
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+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
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+])
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+])
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+])
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+])
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+])
+AT_CHECK([cat time14.out], [0], [dnl
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+])
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+ -16366:30:04.2
+ -16345:56:51.6
+])
+AT_CHECK([cat time14.2.out], [0], [dnl
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+    00:00:00.00
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+ -16360:45:44.7
+ -16365:30:57.6
+ -16366:30:04.2
+ -16345:56:51.6
+])
+AT_CHECK([cat time14.3.out], [0], [dnl
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+   12:31:35.235
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+ -16360:45:44.7
+ -16365:30:57.6
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+ -16345:56:51.6
+])
+AT_CHECK([cat time14.4.out], [0], [dnl
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+  01:56:51.5932
+  24:00:00.0000
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+  36:47:53.3451
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+  40:45:44.6583
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+  25:56:51.5932
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+ -16366:30:04.2
+ -16345:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/time14.5.txt b/rust/pspp/src/format/testdata/display/time14.5.txt
new file mode 100644
index 0000000000..6ed94bcff5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.5.txt
@@ -0,0 +1,3836 @@
+ 00:00:00.0
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+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
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+    04:50:38
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+    12:47:53
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
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+ 02:57:52.02
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+   -16344:00
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+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
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+   -16346:57
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+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
+     20:58:11
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+     24:00:00
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+     39:43:49
+     28:25:09
+     30:49:27
+     26:57:52
+     40:45:44
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+     28:25:09
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+     26:57:52
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+  -1312:45:44
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+  -1297:56:51
+ -16344:00:00
+ -16348:50:38
+ -16356:31:35
+ -16356:47:53
+ -16345:26:00
+ -16364:58:11
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+ -16359:43:49
+ -16348:25:09
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+ -16346:57:52
+ -16360:45:44
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+ -16348:25:09
+ -16350:49:27
+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
+   00:00:00.0
+   04:50:38.1
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+])
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+])
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+])
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+])
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+])
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+])
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+ -16345:56:51.6
+])
+AT_CHECK([cat time14.3.out], [0], [dnl
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+])
+AT_CHECK([cat time14.4.out], [0], [dnl
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+])
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diff --git a/rust/pspp/src/format/testdata/display/time14.txt b/rust/pspp/src/format/testdata/display/time14.txt
new file mode 100644
index 0000000000..36d2c45ec0
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time14.txt
@@ -0,0 +1,2826 @@
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+  -16360:45
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+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
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+    04:50:38
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+    12:47:53
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+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
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+  12:31:35.2
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+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time12.out], [0], [dnl
+     00:00:00
+     04:50:38
+     12:31:35
+     12:47:53
+     01:26:00
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+])
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+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+ 28:50:38.1230
+ 36:31:35.2345
+ 36:47:53.3451
+ 25:26:00.4561
+ 44:58:11.5668
+ 31:36:05.1896
+ 39:43:49.8313
+ 28:25:09.0129
+ 30:49:27.5237
+ 26:57:52.0157
+ 40:45:44.8653
+ 45:30:57.8205
+ 28:25:09.1540
+ 30:49:27.1053
+ 26:57:52.4823
+ 40:45:44.6583
+ 45:30:57.5822
+ 46:30:04.1835
+ 25:56:51.5932
+ 48:00:00.0000
+ 52:50:38.1230
+ 60:31:35.2345
+ 60:47:53.3451
+ 49:26:00.4562
+ 68:58:11.5668
+ 55:36:05.1896
+ 63:43:49.8313
+ 52:25:09.0129
+ 54:49:27.5237
+ 50:57:52.0156
+ 64:45:44.8653
+ 69:30:57.8205
+ 52:25:09.1540
+ 54:49:27.1053
+ 50:57:52.4823
+ 64:45:44.6583
+ 69:30:57.5822
+ 70:30:04.1835
+ 49:56:51.5932
+ 1296:00:00.00
+ 1300:50:38.12
+ 1308:31:35.23
+ 1308:47:53.35
+ 1297:26:00.46
+ 1316:58:11.57
+ 1303:36:05.19
+ 1311:43:49.83
+ 1300:25:09.01
+ 1302:49:27.52
+ 1298:57:52.02
+ 1312:45:44.87
+ 1317:30:57.82
+ 1300:25:09.15
+ 1302:49:27.11
+ 1298:57:52.48
+ 1312:45:44.66
+ 1317:30:57.58
+ 1318:30:04.18
+ 1297:56:51.59
+ 16344:00:00.0
+ 16348:50:38.1
+ 16356:31:35.2
+ 16356:47:53.3
+ 16345:26:00.5
+ 16364:58:11.6
+ 16351:36:05.2
+ 16359:43:49.8
+ 16348:25:09.0
+ 16350:49:27.5
+ 16346:57:52.0
+ 16360:45:44.9
+ 16365:30:57.8
+ 16348:25:09.2
+ 16350:49:27.1
+ 16346:57:52.5
+ 16360:45:44.7
+ 16365:30:57.6
+ 16366:30:04.2
+ 16345:56:51.6
+ 00:00:00.0000
+ -04:50:38.123
+ -12:31:35.235
+ -12:47:53.345
+ -01:26:00.456
+ -20:58:11.567
+ -07:36:05.190
+ -15:43:49.831
+ -04:25:09.013
+ -06:49:27.524
+ -02:57:52.016
+ -16:45:44.865
+ -21:30:57.820
+ -04:25:09.154
+ -06:49:27.105
+ -02:57:52.482
+ -16:45:44.658
+ -21:30:57.582
+ -22:30:04.183
+ -01:56:51.593
+ -24:00:00.000
+ -28:50:38.123
+ -36:31:35.235
+ -36:47:53.345
+ -25:26:00.456
+ -44:58:11.567
+ -31:36:05.190
+ -39:43:49.831
+ -28:25:09.013
+ -30:49:27.524
+ -26:57:52.016
+ -40:45:44.865
+ -45:30:57.820
+ -28:25:09.154
+ -30:49:27.105
+ -26:57:52.482
+ -40:45:44.658
+ -45:30:57.582
+ -46:30:04.183
+ -25:56:51.593
+ -48:00:00.000
+ -52:50:38.123
+ -60:31:35.235
+ -60:47:53.345
+ -49:26:00.456
+ -68:58:11.567
+ -55:36:05.190
+ -63:43:49.831
+ -52:25:09.013
+ -54:49:27.524
+ -50:57:52.016
+ -64:45:44.865
+ -69:30:57.820
+ -52:25:09.154
+ -54:49:27.105
+ -50:57:52.482
+ -64:45:44.658
+ -69:30:57.582
+ -70:30:04.183
+ -49:56:51.593
+ -1296:00:00.0
+ -1300:50:38.1
+ -1308:31:35.2
+ -1308:47:53.3
+ -1297:26:00.5
+ -1316:58:11.6
+ -1303:36:05.2
+ -1311:43:49.8
+ -1300:25:09.0
+ -1302:49:27.5
+ -1298:57:52.0
+ -1312:45:44.9
+ -1317:30:57.8
+ -1300:25:09.2
+ -1302:49:27.1
+ -1298:57:52.5
+ -1312:45:44.7
+ -1317:30:57.6
+ -1318:30:04.2
+ -1297:56:51.6
+  -16344:00:00
+  -16348:50:38
+  -16356:31:35
+  -16356:47:53
+  -16345:26:00
+  -16364:58:11
+  -16351:36:05
+  -16359:43:49
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16348:25:09
+  -16350:49:27
+  -16346:57:52
+  -16360:45:44
+  -16365:30:57
+  -16366:30:04
+  -16345:56:51
+])
+AT_CHECK([cat time14.out], [0], [dnl
+       00:00:00
+       04:50:38
+       12:31:35
+       12:47:53
+       01:26:00
+       20:58:11
+       07:36:05
+       15:43:49
+       04:25:09
+       06:49:27
+       02:57:52
+       16:45:44
+       21:30:57
+       04:25:09
+       06:49:27
+       02:57:52
+       16:45:44
+       21:30:57
+       22:30:04
+       01:56:51
+       24:00:00
+       28:50:38
+       36:31:35
+       36:47:53
+       25:26:00
+       44:58:11
+       31:36:05
+       39:43:49
+       28:25:09
+       30:49:27
+       26:57:52
+       40:45:44
+       45:30:57
+       28:25:09
+       30:49:27
+       26:57:52
+       40:45:44
+       45:30:57
+       46:30:04
+       25:56:51
+       48:00:00
+       52:50:38
+       60:31:35
+       60:47:53
+       49:26:00
+       68:58:11
+       55:36:05
+       63:43:49
+       52:25:09
+       54:49:27
+       50:57:52
+       64:45:44
+       69:30:57
+       52:25:09
+       54:49:27
+       50:57:52
+       64:45:44
+       69:30:57
+       70:30:04
+       49:56:51
+     1296:00:00
+     1300:50:38
+     1308:31:35
+     1308:47:53
+     1297:26:00
+     1316:58:11
+     1303:36:05
+     1311:43:49
+     1300:25:09
+     1302:49:27
+     1298:57:52
+     1312:45:44
+     1317:30:57
+     1300:25:09
+     1302:49:27
+     1298:57:52
+     1312:45:44
+     1317:30:57
+     1318:30:04
+     1297:56:51
+    16344:00:00
+    16348:50:38
+    16356:31:35
+    16356:47:53
+    16345:26:00
+    16364:58:11
+    16351:36:05
+    16359:43:49
+    16348:25:09
+    16350:49:27
+    16346:57:52
+    16360:45:44
+    16365:30:57
+    16348:25:09
+    16350:49:27
+    16346:57:52
+    16360:45:44
+    16365:30:57
+    16366:30:04
+    16345:56:51
+       00:00:00
+      -04:50:38
+      -12:31:35
+      -12:47:53
+      -01:26:00
+      -20:58:11
+      -07:36:05
+      -15:43:49
+      -04:25:09
+      -06:49:27
+      -02:57:52
+      -16:45:44
+      -21:30:57
+      -04:25:09
+      -06:49:27
+      -02:57:52
+      -16:45:44
+      -21:30:57
+      -22:30:04
+      -01:56:51
+      -24:00:00
+      -28:50:38
+      -36:31:35
+      -36:47:53
+      -25:26:00
+      -44:58:11
+      -31:36:05
+      -39:43:49
+      -28:25:09
+      -30:49:27
+      -26:57:52
+      -40:45:44
+      -45:30:57
+      -28:25:09
+      -30:49:27
+      -26:57:52
+      -40:45:44
+      -45:30:57
+      -46:30:04
+      -25:56:51
+      -48:00:00
+      -52:50:38
+      -60:31:35
+      -60:47:53
+      -49:26:00
+      -68:58:11
+      -55:36:05
+      -63:43:49
+      -52:25:09
+      -54:49:27
+      -50:57:52
+      -64:45:44
+      -69:30:57
+      -52:25:09
+      -54:49:27
+      -50:57:52
+      -64:45:44
+      -69:30:57
+      -70:30:04
+      -49:56:51
+    -1296:00:00
+    -1300:50:38
+    -1308:31:35
+    -1308:47:53
+    -1297:26:00
+    -1316:58:11
+    -1303:36:05
+    -1311:43:49
+    -1300:25:09
+    -1302:49:27
+    -1298:57:52
+    -1312:45:44
+    -1317:30:57
+    -1300:25:09
+    -1302:49:27
+    -1298:57:52
+    -1312:45:44
+    -1317:30:57
+    -1318:30:04
+    -1297:56:51
+   -16344:00:00
+   -16348:50:38
+   -16356:31:35
+   -16356:47:53
+   -16345:26:00
+   -16364:58:11
+   -16351:36:05
+   -16359:43:49
+   -16348:25:09
+   -16350:49:27
+   -16346:57:52
+   -16360:45:44
+   -16365:30:57
+   -16348:25:09
+   -16350:49:27
+   -16346:57:52
+   -16360:45:44
+   -16365:30:57
+   -16366:30:04
+   -16345:56:51
diff --git a/rust/pspp/src/format/testdata/display/time15.1.txt b/rust/pspp/src/format/testdata/display/time15.1.txt
new file mode 100644
index 0000000000..46f89460d5
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.1.txt
@@ -0,0 +1,4240 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
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+   -16360:45
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+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
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+ 04:50:38.12
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+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     04:50:38
+     12:31:35
+     12:47:53
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+ -16346:57:52
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+ -16365:30:57
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+ -16345:56:51
+])
+AT_CHECK([cat time12.1.out], [0], [dnl
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+ -16346:57:52
+ -16360:45:44
+ -16365:30:57
+ -16366:30:04
+ -16345:56:51
+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+ 04:50:38.123
+ 12:31:35.235
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+ -16360:45:44
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+])
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+])
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+])
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+])
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+])
+AT_CHECK([cat time14.out], [0], [dnl
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+     -25:26:00.5
+     -44:58:11.6
+     -31:36:05.2
+     -39:43:49.8
+     -28:25:09.0
+     -30:49:27.5
+     -26:57:52.0
+     -40:45:44.9
+     -45:30:57.8
+     -28:25:09.2
+     -30:49:27.1
+     -26:57:52.5
+     -40:45:44.7
+     -45:30:57.6
+     -46:30:04.2
+     -25:56:51.6
+     -48:00:00.0
+     -52:50:38.1
+     -60:31:35.2
+     -60:47:53.3
+     -49:26:00.5
+     -68:58:11.6
+     -55:36:05.2
+     -63:43:49.8
+     -52:25:09.0
+     -54:49:27.5
+     -50:57:52.0
+     -64:45:44.9
+     -69:30:57.8
+     -52:25:09.2
+     -54:49:27.1
+     -50:57:52.5
+     -64:45:44.7
+     -69:30:57.6
+     -70:30:04.2
+     -49:56:51.6
+   -1296:00:00.0
+   -1300:50:38.1
+   -1308:31:35.2
+   -1308:47:53.3
+   -1297:26:00.5
+   -1316:58:11.6
+   -1303:36:05.2
+   -1311:43:49.8
+   -1300:25:09.0
+   -1302:49:27.5
+   -1298:57:52.0
+   -1312:45:44.9
+   -1317:30:57.8
+   -1300:25:09.2
+   -1302:49:27.1
+   -1298:57:52.5
+   -1312:45:44.7
+   -1317:30:57.6
+   -1318:30:04.2
+   -1297:56:51.6
+  -16344:00:00.0
+  -16348:50:38.1
+  -16356:31:35.2
+  -16356:47:53.3
+  -16345:26:00.5
+  -16364:58:11.6
+  -16351:36:05.2
+  -16359:43:49.8
+  -16348:25:09.0
+  -16350:49:27.5
+  -16346:57:52.0
+  -16360:45:44.9
+  -16365:30:57.8
+  -16348:25:09.2
+  -16350:49:27.1
+  -16346:57:52.5
+  -16360:45:44.7
+  -16365:30:57.6
+  -16366:30:04.2
+  -16345:56:51.6
diff --git a/rust/pspp/src/format/testdata/display/time15.2.txt b/rust/pspp/src/format/testdata/display/time15.2.txt
new file mode 100644
index 0000000000..b819d0bafc
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.2.txt
@@ -0,0 +1,4442 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
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+   -16360:45
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+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     04:50:38
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+     12:47:53
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+])
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+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+  -16360:45:44
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+])
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+  -16360:45:44
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+])
+AT_CHECK([cat time13.2.out], [0], [dnl
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+  -16365:30:57
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+  -16345:56:51
+])
+AT_CHECK([cat time13.3.out], [0], [dnl
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+])
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+])
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+])
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+  -1312:45:44.66
+  -1317:30:57.58
+  -1318:30:04.18
+  -1297:56:51.59
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/time15.3.txt b/rust/pspp/src/format/testdata/display/time15.3.txt
new file mode 100644
index 0000000000..2934bfb9ad
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.3.txt
@@ -0,0 +1,200 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
+   -52:25:09.013
+   -54:49:27.524
+   -50:57:52.016
+   -64:45:44.865
+   -69:30:57.820
+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/time15.4.txt b/rust/pspp/src/format/testdata/display/time15.4.txt
new file mode 100644
index 0000000000..f975197cf2
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.4.txt
@@ -0,0 +1,402 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
+    30:49:27.105
+    26:57:52.482
+    40:45:44.658
+    45:30:57.582
+    46:30:04.183
+    25:56:51.593
+    48:00:00.000
+    52:50:38.123
+    60:31:35.235
+    60:47:53.345
+    49:26:00.456
+    68:58:11.567
+    55:36:05.190
+    63:43:49.831
+    52:25:09.013
+    54:49:27.524
+    50:57:52.016
+    64:45:44.865
+    69:30:57.820
+    52:25:09.154
+    54:49:27.105
+    50:57:52.482
+    64:45:44.658
+    69:30:57.582
+    70:30:04.183
+    49:56:51.593
+  1296:00:00.000
+  1300:50:38.123
+  1308:31:35.235
+  1308:47:53.345
+  1297:26:00.456
+  1316:58:11.567
+  1303:36:05.190
+  1311:43:49.831
+  1300:25:09.013
+  1302:49:27.524
+  1298:57:52.016
+  1312:45:44.865
+  1317:30:57.820
+  1300:25:09.154
+  1302:49:27.105
+  1298:57:52.482
+  1312:45:44.658
+  1317:30:57.582
+  1318:30:04.183
+  1297:56:51.593
+ 16344:00:00.000
+ 16348:50:38.123
+ 16356:31:35.235
+ 16356:47:53.345
+ 16345:26:00.456
+ 16364:58:11.567
+ 16351:36:05.190
+ 16359:43:49.831
+ 16348:25:09.013
+ 16350:49:27.524
+ 16346:57:52.016
+ 16360:45:44.865
+ 16365:30:57.820
+ 16348:25:09.154
+ 16350:49:27.105
+ 16346:57:52.482
+ 16360:45:44.658
+ 16365:30:57.582
+ 16366:30:04.183
+ 16345:56:51.593
+    00:00:00.000
+   -04:50:38.123
+   -12:31:35.235
+   -12:47:53.345
+   -01:26:00.456
+   -20:58:11.567
+   -07:36:05.190
+   -15:43:49.831
+   -04:25:09.013
+   -06:49:27.524
+   -02:57:52.016
+   -16:45:44.865
+   -21:30:57.820
+   -04:25:09.154
+   -06:49:27.105
+   -02:57:52.482
+   -16:45:44.658
+   -21:30:57.582
+   -22:30:04.183
+   -01:56:51.593
+   -24:00:00.000
+   -28:50:38.123
+   -36:31:35.235
+   -36:47:53.345
+   -25:26:00.456
+   -44:58:11.567
+   -31:36:05.190
+   -39:43:49.831
+   -28:25:09.013
+   -30:49:27.524
+   -26:57:52.016
+   -40:45:44.865
+   -45:30:57.820
+   -28:25:09.154
+   -30:49:27.105
+   -26:57:52.482
+   -40:45:44.658
+   -45:30:57.582
+   -46:30:04.183
+   -25:56:51.593
+   -48:00:00.000
+   -52:50:38.123
+   -60:31:35.235
+   -60:47:53.345
+   -49:26:00.456
+   -68:58:11.567
+   -55:36:05.190
+   -63:43:49.831
+   -52:25:09.013
+   -54:49:27.524
+   -50:57:52.016
+   -64:45:44.865
+   -69:30:57.820
+   -52:25:09.154
+   -54:49:27.105
+   -50:57:52.482
+   -64:45:44.658
+   -69:30:57.582
+   -70:30:04.183
+   -49:56:51.593
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
+   04:50:38.1230
+   12:31:35.2345
+   12:47:53.3451
+   01:26:00.4561
+   20:58:11.5668
+   07:36:05.1896
+   15:43:49.8313
+   04:25:09.0129
+   06:49:27.5238
+   02:57:52.0156
+   16:45:44.8653
+   21:30:57.8205
+   04:25:09.1539
+   06:49:27.1053
+   02:57:52.4823
+   16:45:44.6583
+   21:30:57.5822
+   22:30:04.1835
+   01:56:51.5932
+   24:00:00.0000
+   28:50:38.1230
+   36:31:35.2345
+   36:47:53.3451
+   25:26:00.4561
+   44:58:11.5668
+   31:36:05.1896
+   39:43:49.8313
+   28:25:09.0129
+   30:49:27.5237
+   26:57:52.0157
+   40:45:44.8653
+   45:30:57.8205
+   28:25:09.1540
+   30:49:27.1053
+   26:57:52.4823
+   40:45:44.6583
+   45:30:57.5822
+   46:30:04.1835
+   25:56:51.5932
+   48:00:00.0000
+   52:50:38.1230
+   60:31:35.2345
+   60:47:53.3451
+   49:26:00.4562
+   68:58:11.5668
+   55:36:05.1896
+   63:43:49.8313
+   52:25:09.0129
+   54:49:27.5237
+   50:57:52.0156
+   64:45:44.8653
+   69:30:57.8205
+   52:25:09.1540
+   54:49:27.1053
+   50:57:52.4823
+   64:45:44.6583
+   69:30:57.5822
+   70:30:04.1835
+   49:56:51.5932
+ 1296:00:00.0000
+ 1300:50:38.1230
+ 1308:31:35.2345
+ 1308:47:53.3450
+ 1297:26:00.4561
+ 1316:58:11.5668
+ 1303:36:05.1896
+ 1311:43:49.8313
+ 1300:25:09.0129
+ 1302:49:27.5237
+ 1298:57:52.0157
+ 1312:45:44.8653
+ 1317:30:57.8205
+ 1300:25:09.1540
+ 1302:49:27.1053
+ 1298:57:52.4823
+ 1312:45:44.6583
+ 1317:30:57.5822
+ 1318:30:04.1835
+ 1297:56:51.5932
+ 16344:00:00.000
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+ 16360:45:44.658
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+ 16366:30:04.183
+ 16345:56:51.593
+   00:00:00.0000
+  -04:50:38.1230
+  -12:31:35.2345
+  -12:47:53.3451
+  -01:26:00.4561
+  -20:58:11.5668
+  -07:36:05.1896
+  -15:43:49.8313
+  -04:25:09.0129
+  -06:49:27.5238
+  -02:57:52.0156
+  -16:45:44.8653
+  -21:30:57.8205
+  -04:25:09.1539
+  -06:49:27.1053
+  -02:57:52.4823
+  -16:45:44.6583
+  -21:30:57.5822
+  -22:30:04.1835
+  -01:56:51.5932
+  -24:00:00.0000
+  -28:50:38.1230
+  -36:31:35.2345
+  -36:47:53.3451
+  -25:26:00.4561
+  -44:58:11.5668
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+  -39:43:49.8313
+  -28:25:09.0129
+  -30:49:27.5237
+  -26:57:52.0157
+  -40:45:44.8653
+  -45:30:57.8205
+  -28:25:09.1540
+  -30:49:27.1053
+  -26:57:52.4823
+  -40:45:44.6583
+  -45:30:57.5822
+  -46:30:04.1835
+  -25:56:51.5932
+  -48:00:00.0000
+  -52:50:38.1230
+  -60:31:35.2345
+  -60:47:53.3451
+  -49:26:00.4562
+  -68:58:11.5668
+  -55:36:05.1896
+  -63:43:49.8313
+  -52:25:09.0129
+  -54:49:27.5237
+  -50:57:52.0156
+  -64:45:44.8653
+  -69:30:57.8205
+  -52:25:09.1540
+  -54:49:27.1053
+  -50:57:52.4823
+  -64:45:44.6583
+  -69:30:57.5822
+  -70:30:04.1835
+  -49:56:51.5932
+ -1296:00:00.000
+ -1300:50:38.123
+ -1308:31:35.235
+ -1308:47:53.345
+ -1297:26:00.456
+ -1316:58:11.567
+ -1303:36:05.190
+ -1311:43:49.831
+ -1300:25:09.013
+ -1302:49:27.524
+ -1298:57:52.016
+ -1312:45:44.865
+ -1317:30:57.820
+ -1300:25:09.154
+ -1302:49:27.105
+ -1298:57:52.482
+ -1312:45:44.658
+ -1317:30:57.582
+ -1318:30:04.183
+ -1297:56:51.593
+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/time15.5.txt b/rust/pspp/src/format/testdata/display/time15.5.txt
new file mode 100644
index 0000000000..5d8fe7e236
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.5.txt
@@ -0,0 +1,604 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
+    12:47:53.345
+    01:26:00.456
+    20:58:11.567
+    07:36:05.190
+    15:43:49.831
+    04:25:09.013
+    06:49:27.524
+    02:57:52.016
+    16:45:44.865
+    21:30:57.820
+    04:25:09.154
+    06:49:27.105
+    02:57:52.482
+    16:45:44.658
+    21:30:57.582
+    22:30:04.183
+    01:56:51.593
+    24:00:00.000
+    28:50:38.123
+    36:31:35.235
+    36:47:53.345
+    25:26:00.456
+    44:58:11.567
+    31:36:05.190
+    39:43:49.831
+    28:25:09.013
+    30:49:27.524
+    26:57:52.016
+    40:45:44.865
+    45:30:57.820
+    28:25:09.154
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.4.out], [0], [dnl
+   00:00:00.0000
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+   12:31:35.2345
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+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
+])
+AT_CHECK([cat time15.5.out], [0], [dnl
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+  36:47:53.34505
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+  31:36:05.18964
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+  28:25:09.01293
+  30:49:27.52375
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+  64:45:44.65827
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+ -16366:30:04.18
+ -16345:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/time15.6.txt b/rust/pspp/src/format/testdata/display/time15.6.txt
new file mode 100644
index 0000000000..86bb27ba96
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.6.txt
@@ -0,0 +1,806 @@
+    00:00:00.000
+    04:50:38.123
+    12:31:35.235
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+    00:00:00.000
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+ -16344:00:00.00
+ -16348:50:38.12
+ -16356:31:35.23
+ -16356:47:53.35
+ -16345:26:00.46
+ -16364:58:11.57
+ -16351:36:05.19
+ -16359:43:49.83
+ -16348:25:09.01
+ -16350:49:27.52
+ -16346:57:52.02
+ -16360:45:44.87
+ -16365:30:57.82
+ -16348:25:09.15
+ -16350:49:27.11
+ -16346:57:52.48
+ -16360:45:44.66
+ -16365:30:57.58
+ -16366:30:04.18
+ -16345:56:51.59
diff --git a/rust/pspp/src/format/testdata/display/time15.txt b/rust/pspp/src/format/testdata/display/time15.txt
new file mode 100644
index 0000000000..59ba008ce4
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time15.txt
@@ -0,0 +1,4038 @@
+ 00:00:00.0
+ 04:50:38.1
+ 12:31:35.2
+ 12:47:53.3
+ 01:26:00.5
+ 20:58:11.6
+ 07:36:05.2
+ 15:43:49.8
+ 04:25:09.0
+ 06:49:27.5
+ 02:57:52.0
+ 16:45:44.9
+ 21:30:57.8
+ 04:25:09.2
+ 06:49:27.1
+ 02:57:52.5
+ 16:45:44.7
+ 21:30:57.6
+ 22:30:04.2
+ 01:56:51.6
+ 24:00:00.0
+ 28:50:38.1
+ 36:31:35.2
+ 36:47:53.3
+ 25:26:00.5
+ 44:58:11.6
+ 31:36:05.2
+ 39:43:49.8
+ 28:25:09.0
+ 30:49:27.5
+ 26:57:52.0
+ 40:45:44.9
+ 45:30:57.8
+ 28:25:09.2
+ 30:49:27.1
+ 26:57:52.5
+ 40:45:44.7
+ 45:30:57.6
+ 46:30:04.2
+ 25:56:51.6
+ 48:00:00.0
+ 52:50:38.1
+ 60:31:35.2
+ 60:47:53.3
+ 49:26:00.5
+ 68:58:11.6
+ 55:36:05.2
+ 63:43:49.8
+ 52:25:09.0
+ 54:49:27.5
+ 50:57:52.0
+ 64:45:44.9
+ 69:30:57.8
+ 52:25:09.2
+ 54:49:27.1
+ 50:57:52.5
+ 64:45:44.7
+ 69:30:57.6
+ 70:30:04.2
+ 49:56:51.6
+ 1296:00:00
+ 1300:50:38
+ 1308:31:35
+ 1308:47:53
+ 1297:26:00
+ 1316:58:11
+ 1303:36:05
+ 1311:43:49
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1300:25:09
+ 1302:49:27
+ 1298:57:52
+ 1312:45:44
+ 1317:30:57
+ 1318:30:04
+ 1297:56:51
+   16344:00
+   16348:50
+   16356:31
+   16356:47
+   16345:26
+   16364:58
+   16351:36
+   16359:43
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16348:25
+   16350:49
+   16346:57
+   16360:45
+   16365:30
+   16366:30
+   16345:56
+ 00:00:00.0
+  -04:50:38
+  -12:31:35
+  -12:47:53
+  -01:26:00
+  -20:58:11
+  -07:36:05
+  -15:43:49
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -04:25:09
+  -06:49:27
+  -02:57:52
+  -16:45:44
+  -21:30:57
+  -22:30:04
+  -01:56:51
+  -24:00:00
+  -28:50:38
+  -36:31:35
+  -36:47:53
+  -25:26:00
+  -44:58:11
+  -31:36:05
+  -39:43:49
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -28:25:09
+  -30:49:27
+  -26:57:52
+  -40:45:44
+  -45:30:57
+  -46:30:04
+  -25:56:51
+  -48:00:00
+  -52:50:38
+  -60:31:35
+  -60:47:53
+  -49:26:00
+  -68:58:11
+  -55:36:05
+  -63:43:49
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -52:25:09
+  -54:49:27
+  -50:57:52
+  -64:45:44
+  -69:30:57
+  -70:30:04
+  -49:56:51
+   -1296:00
+   -1300:50
+   -1308:31
+   -1308:47
+   -1297:26
+   -1316:58
+   -1303:36
+   -1311:43
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1300:25
+   -1302:49
+   -1298:57
+   -1312:45
+   -1317:30
+   -1318:30
+   -1297:56
+  -16344:00
+  -16348:50
+  -16356:31
+  -16356:47
+  -16345:26
+  -16364:58
+  -16351:36
+  -16359:43
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16348:25
+  -16350:49
+  -16346:57
+  -16360:45
+  -16365:30
+  -16366:30
+  -16345:56
+])
+AT_CHECK([cat time11.out], [0], [dnl
+    00:00:00
+    04:50:38
+    12:31:35
+    12:47:53
+    01:26:00
+    20:58:11
+    07:36:05
+    15:43:49
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    04:25:09
+    06:49:27
+    02:57:52
+    16:45:44
+    21:30:57
+    22:30:04
+    01:56:51
+    24:00:00
+    28:50:38
+    36:31:35
+    36:47:53
+    25:26:00
+    44:58:11
+    31:36:05
+    39:43:49
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    28:25:09
+    30:49:27
+    26:57:52
+    40:45:44
+    45:30:57
+    46:30:04
+    25:56:51
+    48:00:00
+    52:50:38
+    60:31:35
+    60:47:53
+    49:26:00
+    68:58:11
+    55:36:05
+    63:43:49
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    52:25:09
+    54:49:27
+    50:57:52
+    64:45:44
+    69:30:57
+    70:30:04
+    49:56:51
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+    00:00:00
+   -04:50:38
+   -12:31:35
+   -12:47:53
+   -01:26:00
+   -20:58:11
+   -07:36:05
+   -15:43:49
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -04:25:09
+   -06:49:27
+   -02:57:52
+   -16:45:44
+   -21:30:57
+   -22:30:04
+   -01:56:51
+   -24:00:00
+   -28:50:38
+   -36:31:35
+   -36:47:53
+   -25:26:00
+   -44:58:11
+   -31:36:05
+   -39:43:49
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -28:25:09
+   -30:49:27
+   -26:57:52
+   -40:45:44
+   -45:30:57
+   -46:30:04
+   -25:56:51
+   -48:00:00
+   -52:50:38
+   -60:31:35
+   -60:47:53
+   -49:26:00
+   -68:58:11
+   -55:36:05
+   -63:43:49
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -52:25:09
+   -54:49:27
+   -50:57:52
+   -64:45:44
+   -69:30:57
+   -70:30:04
+   -49:56:51
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.1.out], [0], [dnl
+  00:00:00.0
+  04:50:38.1
+  12:31:35.2
+  12:47:53.3
+  01:26:00.5
+  20:58:11.6
+  07:36:05.2
+  15:43:49.8
+  04:25:09.0
+  06:49:27.5
+  02:57:52.0
+  16:45:44.9
+  21:30:57.8
+  04:25:09.2
+  06:49:27.1
+  02:57:52.5
+  16:45:44.7
+  21:30:57.6
+  22:30:04.2
+  01:56:51.6
+  24:00:00.0
+  28:50:38.1
+  36:31:35.2
+  36:47:53.3
+  25:26:00.5
+  44:58:11.6
+  31:36:05.2
+  39:43:49.8
+  28:25:09.0
+  30:49:27.5
+  26:57:52.0
+  40:45:44.9
+  45:30:57.8
+  28:25:09.2
+  30:49:27.1
+  26:57:52.5
+  40:45:44.7
+  45:30:57.6
+  46:30:04.2
+  25:56:51.6
+  48:00:00.0
+  52:50:38.1
+  60:31:35.2
+  60:47:53.3
+  49:26:00.5
+  68:58:11.6
+  55:36:05.2
+  63:43:49.8
+  52:25:09.0
+  54:49:27.5
+  50:57:52.0
+  64:45:44.9
+  69:30:57.8
+  52:25:09.2
+  54:49:27.1
+  50:57:52.5
+  64:45:44.7
+  69:30:57.6
+  70:30:04.2
+  49:56:51.6
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
+ 16348:50:38
+ 16356:31:35
+ 16356:47:53
+ 16345:26:00
+ 16364:58:11
+ 16351:36:05
+ 16359:43:49
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16348:25:09
+ 16350:49:27
+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
+ 16366:30:04
+ 16345:56:51
+  00:00:00.0
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
+   -16356:47
+   -16345:26
+   -16364:58
+   -16351:36
+   -16359:43
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16348:25
+   -16350:49
+   -16346:57
+   -16360:45
+   -16365:30
+   -16366:30
+   -16345:56
+])
+AT_CHECK([cat time11.2.out], [0], [dnl
+ 00:00:00.00
+ 04:50:38.12
+ 12:31:35.23
+ 12:47:53.35
+ 01:26:00.46
+ 20:58:11.57
+ 07:36:05.19
+ 15:43:49.83
+ 04:25:09.01
+ 06:49:27.52
+ 02:57:52.02
+ 16:45:44.87
+ 21:30:57.82
+ 04:25:09.15
+ 06:49:27.11
+ 02:57:52.48
+ 16:45:44.66
+ 21:30:57.58
+ 22:30:04.18
+ 01:56:51.59
+ 24:00:00.00
+ 28:50:38.12
+ 36:31:35.23
+ 36:47:53.35
+ 25:26:00.46
+ 44:58:11.57
+ 31:36:05.19
+ 39:43:49.83
+ 28:25:09.01
+ 30:49:27.52
+ 26:57:52.02
+ 40:45:44.87
+ 45:30:57.82
+ 28:25:09.15
+ 30:49:27.11
+ 26:57:52.48
+ 40:45:44.66
+ 45:30:57.58
+ 46:30:04.18
+ 25:56:51.59
+ 48:00:00.00
+ 52:50:38.12
+ 60:31:35.23
+ 60:47:53.35
+ 49:26:00.46
+ 68:58:11.57
+ 55:36:05.19
+ 63:43:49.83
+ 52:25:09.01
+ 54:49:27.52
+ 50:57:52.02
+ 64:45:44.87
+ 69:30:57.82
+ 52:25:09.15
+ 54:49:27.11
+ 50:57:52.48
+ 64:45:44.66
+ 69:30:57.58
+ 70:30:04.18
+ 49:56:51.59
+  1296:00:00
+  1300:50:38
+  1308:31:35
+  1308:47:53
+  1297:26:00
+  1316:58:11
+  1303:36:05
+  1311:43:49
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1300:25:09
+  1302:49:27
+  1298:57:52
+  1312:45:44
+  1317:30:57
+  1318:30:04
+  1297:56:51
+ 16344:00:00
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+ 16356:31:35
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+ 16345:26:00
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+ 16351:36:05
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+ 16348:25:09
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+ 16346:57:52
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+ 16348:25:09
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+ 16346:57:52
+ 16360:45:44
+ 16365:30:57
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+ 16345:56:51
+ 00:00:00.00
+ -04:50:38.1
+ -12:31:35.2
+ -12:47:53.3
+ -01:26:00.5
+ -20:58:11.6
+ -07:36:05.2
+ -15:43:49.8
+ -04:25:09.0
+ -06:49:27.5
+ -02:57:52.0
+ -16:45:44.9
+ -21:30:57.8
+ -04:25:09.2
+ -06:49:27.1
+ -02:57:52.5
+ -16:45:44.7
+ -21:30:57.6
+ -22:30:04.2
+ -01:56:51.6
+ -24:00:00.0
+ -28:50:38.1
+ -36:31:35.2
+ -36:47:53.3
+ -25:26:00.5
+ -44:58:11.6
+ -31:36:05.2
+ -39:43:49.8
+ -28:25:09.0
+ -30:49:27.5
+ -26:57:52.0
+ -40:45:44.9
+ -45:30:57.8
+ -28:25:09.2
+ -30:49:27.1
+ -26:57:52.5
+ -40:45:44.7
+ -45:30:57.6
+ -46:30:04.2
+ -25:56:51.6
+ -48:00:00.0
+ -52:50:38.1
+ -60:31:35.2
+ -60:47:53.3
+ -49:26:00.5
+ -68:58:11.6
+ -55:36:05.2
+ -63:43:49.8
+ -52:25:09.0
+ -54:49:27.5
+ -50:57:52.0
+ -64:45:44.9
+ -69:30:57.8
+ -52:25:09.2
+ -54:49:27.1
+ -50:57:52.5
+ -64:45:44.7
+ -69:30:57.6
+ -70:30:04.2
+ -49:56:51.6
+ -1296:00:00
+ -1300:50:38
+ -1308:31:35
+ -1308:47:53
+ -1297:26:00
+ -1316:58:11
+ -1303:36:05
+ -1311:43:49
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1300:25:09
+ -1302:49:27
+ -1298:57:52
+ -1312:45:44
+ -1317:30:57
+ -1318:30:04
+ -1297:56:51
+   -16344:00
+   -16348:50
+   -16356:31
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+   -16360:45
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+])
+AT_CHECK([cat time12.out], [0], [dnl
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+     04:50:38
+     12:31:35
+     12:47:53
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+])
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+])
+AT_CHECK([cat time12.2.out], [0], [dnl
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+ -16345:56:51
+])
+AT_CHECK([cat time12.3.out], [0], [dnl
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+])
+AT_CHECK([cat time13.out], [0], [dnl
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+])
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+])
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+])
+AT_CHECK([cat time13.3.out], [0], [dnl
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+])
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+])
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+])
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+])
+AT_CHECK([cat time14.2.out], [0], [dnl
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+ -16360:45:44.7
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+ -16366:30:04.2
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+])
+AT_CHECK([cat time15.out], [0], [dnl
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+        12:31:35
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diff --git a/rust/pspp/src/format/testdata/display/time5.txt b/rust/pspp/src/format/testdata/display/time5.txt
new file mode 100644
index 0000000000..716abc783a
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time5.txt
@@ -0,0 +1,200 @@
+ 00:00
+ 04:50
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+ 01:26
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diff --git a/rust/pspp/src/format/testdata/display/time6.txt b/rust/pspp/src/format/testdata/display/time6.txt
new file mode 100644
index 0000000000..8a1be47b44
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time6.txt
@@ -0,0 +1,200 @@
+  00:00
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diff --git a/rust/pspp/src/format/testdata/display/time7.txt b/rust/pspp/src/format/testdata/display/time7.txt
new file mode 100644
index 0000000000..9acdde0a6f
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time7.txt
@@ -0,0 +1,402 @@
+  00:00
+  04:50
+  12:31
+  12:47
+  01:26
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+  07:36
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+])
+AT_CHECK([cat time7.out], [0], [dnl
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diff --git a/rust/pspp/src/format/testdata/display/time8.txt b/rust/pspp/src/format/testdata/display/time8.txt
new file mode 100644
index 0000000000..ddb2298cf0
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time8.txt
@@ -0,0 +1,604 @@
+  00:00
+  04:50
+  12:31
+  12:47
+  01:26
+  20:58
+  07:36
+  15:43
+  04:25
+  06:49
+  02:57
+  16:45
+  21:30
+  04:25
+  06:49
+  02:57
+  16:45
+  21:30
+  22:30
+  01:56
+  24:00
+  28:50
+  36:31
+  36:47
+  25:26
+  44:58
+  31:36
+  39:43
+  28:25
+  30:49
+  26:57
+  40:45
+  45:30
+  28:25
+  30:49
+  26:57
+  40:45
+  45:30
+  46:30
+  25:56
+  48:00
+  52:50
+  60:31
+  60:47
+  49:26
+  68:58
+  55:36
+  63:43
+  52:25
+  54:49
+  50:57
+  64:45
+  69:30
+  52:25
+  54:49
+  50:57
+  64:45
+  69:30
+  70:30
+  49:56
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+ ******
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+ ******
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+ ******
+  00:00
+ -04:50
+ -12:31
+ -12:47
+ -01:26
+ -20:58
+ -07:36
+ -15:43
+ -04:25
+ -06:49
+ -02:57
+ -16:45
+ -21:30
+ -04:25
+ -06:49
+ -02:57
+ -16:45
+ -21:30
+ -22:30
+ -01:56
+ -24:00
+ -28:50
+ -36:31
+ -36:47
+ -25:26
+ -44:58
+ -31:36
+ -39:43
+ -28:25
+ -30:49
+ -26:57
+ -40:45
+ -45:30
+ -28:25
+ -30:49
+ -26:57
+ -40:45
+ -45:30
+ -46:30
+ -25:56
+ -48:00
+ -52:50
+ -60:31
+ -60:47
+ -49:26
+ -68:58
+ -55:36
+ -63:43
+ -52:25
+ -54:49
+ -50:57
+ -64:45
+ -69:30
+ -52:25
+ -54:49
+ -50:57
+ -64:45
+ -69:30
+ -70:30
+ -49:56
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+ ******
+ ******
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+ ******
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+ ******
+ ******
+ ******
+ ******
+])
+AT_CHECK([cat time7.out], [0], [dnl
+   00:00
+   04:50
+   12:31
+   12:47
+   01:26
+   20:58
+   07:36
+   15:43
+   04:25
+   06:49
+   02:57
+   16:45
+   21:30
+   04:25
+   06:49
+   02:57
+   16:45
+   21:30
+   22:30
+   01:56
+   24:00
+   28:50
+   36:31
+   36:47
+   25:26
+   44:58
+   31:36
+   39:43
+   28:25
+   30:49
+   26:57
+   40:45
+   45:30
+   28:25
+   30:49
+   26:57
+   40:45
+   45:30
+   46:30
+   25:56
+   48:00
+   52:50
+   60:31
+   60:47
+   49:26
+   68:58
+   55:36
+   63:43
+   52:25
+   54:49
+   50:57
+   64:45
+   69:30
+   52:25
+   54:49
+   50:57
+   64:45
+   69:30
+   70:30
+   49:56
+ 1296:00
+ 1300:50
+ 1308:31
+ 1308:47
+ 1297:26
+ 1316:58
+ 1303:36
+ 1311:43
+ 1300:25
+ 1302:49
+ 1298:57
+ 1312:45
+ 1317:30
+ 1300:25
+ 1302:49
+ 1298:57
+ 1312:45
+ 1317:30
+ 1318:30
+ 1297:56
+ *******
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+ *******
+ *******
+ *******
+ *******
+   00:00
+  -04:50
+  -12:31
+  -12:47
+  -01:26
+  -20:58
+  -07:36
+  -15:43
+  -04:25
+  -06:49
+  -02:57
+  -16:45
+  -21:30
+  -04:25
+  -06:49
+  -02:57
+  -16:45
+  -21:30
+  -22:30
+  -01:56
+  -24:00
+  -28:50
+  -36:31
+  -36:47
+  -25:26
+  -44:58
+  -31:36
+  -39:43
+  -28:25
+  -30:49
+  -26:57
+  -40:45
+  -45:30
+  -28:25
+  -30:49
+  -26:57
+  -40:45
+  -45:30
+  -46:30
+  -25:56
+  -48:00
+  -52:50
+  -60:31
+  -60:47
+  -49:26
+  -68:58
+  -55:36
+  -63:43
+  -52:25
+  -54:49
+  -50:57
+  -64:45
+  -69:30
+  -52:25
+  -54:49
+  -50:57
+  -64:45
+  -69:30
+  -70:30
+  -49:56
+ *******
+ *******
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+ *******
+ *******
+ *******
+ *******
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+ *******
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+ *******
+ *******
+ *******
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+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+ *******
+])
+AT_CHECK([cat time8.out], [0], [dnl
+ 00:00:00
+ 04:50:38
+ 12:31:35
+ 12:47:53
+ 01:26:00
+ 20:58:11
+ 07:36:05
+ 15:43:49
+ 04:25:09
+ 06:49:27
+ 02:57:52
+ 16:45:44
+ 21:30:57
+ 04:25:09
+ 06:49:27
+ 02:57:52
+ 16:45:44
+ 21:30:57
+ 22:30:04
+ 01:56:51
+ 24:00:00
+ 28:50:38
+ 36:31:35
+ 36:47:53
+ 25:26:00
+ 44:58:11
+ 31:36:05
+ 39:43:49
+ 28:25:09
+ 30:49:27
+ 26:57:52
+ 40:45:44
+ 45:30:57
+ 28:25:09
+ 30:49:27
+ 26:57:52
+ 40:45:44
+ 45:30:57
+ 46:30:04
+ 25:56:51
+ 48:00:00
+ 52:50:38
+ 60:31:35
+ 60:47:53
+ 49:26:00
+ 68:58:11
+ 55:36:05
+ 63:43:49
+ 52:25:09
+ 54:49:27
+ 50:57:52
+ 64:45:44
+ 69:30:57
+ 52:25:09
+ 54:49:27
+ 50:57:52
+ 64:45:44
+ 69:30:57
+ 70:30:04
+ 49:56:51
+  1296:00
+  1300:50
+  1308:31
+  1308:47
+  1297:26
+  1316:58
+  1303:36
+  1311:43
+  1300:25
+  1302:49
+  1298:57
+  1312:45
+  1317:30
+  1300:25
+  1302:49
+  1298:57
+  1312:45
+  1317:30
+  1318:30
+  1297:56
+ 16344:00
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+ 16356:47
+ 16345:26
+ 16364:58
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+ 16360:45
+ 16365:30
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+ 16360:45
+ 16365:30
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+ 00:00:00
+   -04:50
+   -12:31
+   -12:47
+   -01:26
+   -20:58
+   -07:36
+   -15:43
+   -04:25
+   -06:49
+   -02:57
+   -16:45
+   -21:30
+   -04:25
+   -06:49
+   -02:57
+   -16:45
+   -21:30
+   -22:30
+   -01:56
+   -24:00
+   -28:50
+   -36:31
+   -36:47
+   -25:26
+   -44:58
+   -31:36
+   -39:43
+   -28:25
+   -30:49
+   -26:57
+   -40:45
+   -45:30
+   -28:25
+   -30:49
+   -26:57
+   -40:45
+   -45:30
+   -46:30
+   -25:56
+   -48:00
+   -52:50
+   -60:31
+   -60:47
+   -49:26
+   -68:58
+   -55:36
+   -63:43
+   -52:25
+   -54:49
+   -50:57
+   -64:45
+   -69:30
+   -52:25
+   -54:49
+   -50:57
+   -64:45
+   -69:30
+   -70:30
+   -49:56
+ -1296:00
+ -1300:50
+ -1308:31
+ -1308:47
+ -1297:26
+ -1316:58
+ -1303:36
+ -1311:43
+ -1300:25
+ -1302:49
+ -1298:57
+ -1312:45
+ -1317:30
+ -1300:25
+ -1302:49
+ -1298:57
+ -1312:45
+ -1317:30
+ -1318:30
+ -1297:56
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
+ ********
diff --git a/rust/pspp/src/format/testdata/display/time9.txt b/rust/pspp/src/format/testdata/display/time9.txt
new file mode 100644
index 0000000000..b28f6184d0
--- /dev/null
+++ b/rust/pspp/src/format/testdata/display/time9.txt
@@ -0,0 +1,200 @@
+  00:00:00
+  04:50:38
+  12:31:35
+  12:47:53
+  01:26:00
+  20:58:11
+  07:36:05
+  15:43:49
+  04:25:09
+  06:49:27
+  02:57:52
+  16:45:44
+  21:30:57
+  04:25:09
+  06:49:27
+  02:57:52
+  16:45:44
+  21:30:57
+  22:30:04
+  01:56:51
+  24:00:00
+  28:50:38
+  36:31:35
+  36:47:53
+  25:26:00
+  44:58:11
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+  26:57:52
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+  26:57:52
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+  25:56:51
+  48:00:00
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+  60:31:35
+  60:47:53
+  49:26:00
+  68:58:11
+  55:36:05
+  63:43:49
+  52:25:09
+  54:49:27
+  50:57:52
+  64:45:44
+  69:30:57
+  52:25:09
+  54:49:27
+  50:57:52
+  64:45:44
+  69:30:57
+  70:30:04
+  49:56:51
+   1296:00
+   1300:50
+   1308:31
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+   1297:26
+   1316:58
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+   1300:25
+   1302:49
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+   1297:56
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+  16364:58
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+  16360:45
+  16365:30
+  16348:25
+  16350:49
+  16346:57
+  16360:45
+  16365:30
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+  16345:56
+  00:00:00
+ -04:50:38
+ -12:31:35
+ -12:47:53
+ -01:26:00
+ -20:58:11
+ -07:36:05
+ -15:43:49
+ -04:25:09
+ -06:49:27
+ -02:57:52
+ -16:45:44
+ -21:30:57
+ -04:25:09
+ -06:49:27
+ -02:57:52
+ -16:45:44
+ -21:30:57
+ -22:30:04
+ -01:56:51
+ -24:00:00
+ -28:50:38
+ -36:31:35
+ -36:47:53
+ -25:26:00
+ -44:58:11
+ -31:36:05
+ -39:43:49
+ -28:25:09
+ -30:49:27
+ -26:57:52
+ -40:45:44
+ -45:30:57
+ -28:25:09
+ -30:49:27
+ -26:57:52
+ -40:45:44
+ -45:30:57
+ -46:30:04
+ -25:56:51
+ -48:00:00
+ -52:50:38
+ -60:31:35
+ -60:47:53
+ -49:26:00
+ -68:58:11
+ -55:36:05
+ -63:43:49
+ -52:25:09
+ -54:49:27
+ -50:57:52
+ -64:45:44
+ -69:30:57
+ -52:25:09
+ -54:49:27
+ -50:57:52
+ -64:45:44
+ -69:30:57
+ -70:30:04
+ -49:56:51
+  -1296:00
+  -1300:50
+  -1308:31
+  -1308:47
+  -1297:26
+  -1316:58
+  -1303:36
+  -1311:43
+  -1300:25
+  -1302:49
+  -1298:57
+  -1312:45
+  -1317:30
+  -1300:25
+  -1302:49
+  -1298:57
+  -1312:45
+  -1317:30
+  -1318:30
+  -1297:56
+ -16344:00
+ -16348:50
+ -16356:31
+ -16356:47
+ -16345:26
+ -16364:58
+ -16351:36
+ -16359:43
+ -16348:25
+ -16350:49
+ -16346:57
+ -16360:45
+ -16365:30
+ -16348:25
+ -16350:49
+ -16346:57
+ -16360:45
+ -16365:30
+ -16366:30
+ -16345:56
-- 
2.30.2