khard

manage contacts stored as vCard files

khard is fun. But if your clock is not set to UTC, edits and creates will show the wrong time. Best to change your session to UTC if that is not already the case.

$ export TZ=UTC
$ date
Fri Oct 24 10:52:16 PM UTC 2025
$ khard new -a scratch
Wrapping unversioned vCard object, setting version to 4.0. . . .

Then you get REV:20251024T225344Z.