24 hour clock on boot screen?

[Sumleilmus]

When my M1 Mac Mini boots in Sonoma, the clock shows a time in 12 hour time format. Is it possible to get it to show a 24 hour clock format before I log in?

 

[flowrider]

Have you gone into "System Settings" > "General" and chosen "Date & Time"?

Lou

 

[Sumleilmus]

Have you gone into "System Settings" > "General" and chosen "Date & Time"?

Yes. But thanks. No solution to be found there. The time zone is correct, but not the format.

Er, what hardware and macOS are you using? I do not see what you show in your attached image. In particular, I do not see the toggle for "Show 24-hour time on the Lock Screen."

Your reply puzzles me greatly.

 

[bogdanw]

I see the same as@flowrider in General - Date & Time on MBA M1 Sonoma 14.2, although Apple doesn't mention "Show 24-hour time on Lock Screen" in the current documentation.
https://support.apple.com/guide/mac-help/change-date-time-settings-mchlp1124/mac
That setting changes values in /Library/Preferences/.GlobalPreferences.plist, AppleICUForce12HourTime - YES for 12 hours.

To set 24-hour, try from Terminal:

sudo defaults delete /Library/Preferences/.GlobalPreferences.plist AppleICUForce12HourTime

and reboot.
You may need to give Terminal temporary Full Disk Access for the command to work.

 

[bogdanw]

"Show 24-hour time on Lock Screen" seems to have been introduced in Sonoma 14.2
Same virtual machine with Sonoma 14.1.2 and after the update to Sonoma 14.2

 

[blesio]

Yes. But thanks. No solution to be found there. The time zone is correct, but not the format.

Er, what hardware and macOS are you using? I do not see what you show in your attached image. In particular, I do not see the toggle for "Show 24-hour time on the Lock Screen."

Your reply puzzles me greatly.

Dude. Apple takes so long to fix stuff like that. I reported this ages ago. It’s been present since first Sonoma beta. I stopped reporting stuff because Apple doesn’t fix them

 

[gerdgoebel]

I just found this post and have the same problem as the original poster. I have a 2021 MBP M1 and had recently upgraded from Ventura to Sonoma 14.4.
But I have the 24-hour time set as well as show 24-hour time on the Lock Screen. The date and time is correct for my time zone CET.
However, only when I reboot the Mac and get the very first Lock Screen the time shows in 12-hour format. But when my Mac wakes from sleep and shows the Lock Screen it shows the 24-hour time correctly.

I found some other post suggesting to use sudo rm /var/db/timed/com.apple.timed.plist but this did not fix my problem.

Does anybody have this exact problem and found a solution?