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Thunderbird 91.2 Ubuntu-snap-build-1.0 date format changed to 24hr

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  • Last reply by fstjohn1

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I have always used 12hour am/pm date format on Tbird. Lately I noticed that the date format has changed to 24hr throughout, including the calendar. This has happened in the last few weeks. I can find no way to change it back. The date format in my Linux Mint desktop is and always has been 12 hour am/pm. Here are the particulars: Thunderbird 91.2 (64-bit) Ubuntu-snap-build-1.0 Linux Mint Cinnamon 19.3 Any help would be appreciated.

I have always used 12hour am/pm date format on Tbird. Lately I noticed that the date format has changed to 24hr throughout, including the calendar. This has happened in the last few weeks. I can find no way to change it back. The date format in my Linux Mint desktop is and always has been 12 hour am/pm. Here are the particulars: Thunderbird 91.2 (64-bit) Ubuntu-snap-build-1.0 Linux Mint Cinnamon 19.3 Any help would be appreciated.

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Thunderbird "should" follow the format set in Linux, but that may not necessarily be the format used in the desktop.

Have a look at this discussion. The question is exactly the reverse, but it provides the information to check things against the LC environment variable etc. https://unix.stackexchange.com/questions/553679/set-clock-to-24-hour-format-for-all-users

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I followed the link you supplied. Here are the results of the various commands: $ date Sat Oct 30 08:55:39 EDT 2021

$ locale LANG=en_US.UTF-8 LANGUAGE=en_US LC_CTYPE="en_US.UTF-8" LC_NUMERIC=en_US.UTF-8 LC_TIME=en_US.UTF-8 LC_COLLATE="en_US.UTF-8" LC_MONETARY=en_US.UTF-8 LC_MESSAGES="en_US.UTF-8" LC_PAPER=en_US.UTF-8 LC_NAME=en_US.UTF-8 LC_ADDRESS=en_US.UTF-8 LC_TELEPHONE=en_US.UTF-8 LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=en_US.UTF-8 LC_ALL=

$ localectl

  System Locale: LANG=en_US.UTF-8
                 LANGUAGE=en_US:en
      VC Keymap: n/a
     X11 Layout: us
      X11 Model: pc105