On 2019-06-05, Ken Heard <[email protected]> wrote: > > The latest version of Thunderbird for Debian Stretch, 70.7 which I now > use, still allows only the US date format, MM-DD-YYYY, but for me at > least expresses the time as HH:MM (24 hour clock). In a partially > successful attempt to change the date format I did the following.
Maybe something of interest in this bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1426907

