I have set my clock to show 24 hour format and it’s working, even the login screen (lightdm greeter) shows 24 hour format of the time. However, when I lock the screen, it shows a 12hour format. Is this a bug or a feature missing? Any way to change it?
I think the format is hardcoded into the mate-screensaver source:
Maybe you can file an issue on github and label it as a feature request?
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@ouroumov
Thx for replying. I created an issue here: https://github.com/mate-desktop/mate-screensaver/issues/100. If I did anything wrong or more information are needed or whatever let me know.
I managed to fix this by adding the following line to /etc/default/locale:
LC_TIME=“en_DK.UTF-8”
(followed by a reboot, of course)
Any other locale which uses 24-hour time notation by default should work just as well.