dateutils.ddiff(1) on Linux
The text b60757dffe8a, as Debian 10 (Buster) shipped it.
Compute duration from DATE/TIME (the reference date/time) to the other
Flags it lists
-
--backslash-escapes -
--base -
--format -
--from-locale -
--from-zone -
--help -
--input-format -
--quiet -
--skip-illegal -
--version -
-S -
-V -
-b -
-e -
-f -
-h -
-i -
-q