How to set the clock to 24 hour format on Ubuntu Mate 22.04

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21

gsettings set org.ayatana.indicator.datetime time-format '24-hour'

Worked on 22.04, but I'm still looking for the "key" for 20.04

I've got some AI code that needs OpenVINO 2021.3 or 2021.4 and 20.04 is the newest that these will run on. This is the last OpenVINO to support the Movidius NCS2 USB stick, of which I have several.

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Have you tried this on 20.04 ?

gsettings set org.gnome.desktop.interface clock-format '24h'
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Hi, @wally333, @tkn!

I think, the key for 20.04 is com.canonical.indicator.datetime. Ayatana project is a fork of indicators from Unity desktop from Canonical.

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Talking about 24-hour format for the clock,
from my HP-UX days, the method of display of date/time in the File Manager (i.e. Caja), if age was over 24 hours, was to show either

  • only the date, or
  • only the time, with no date.

It has been years since I looked at anything Windows, but I seem to recall they use that same convention.

This convention allowed for a narrower listing for ls -l output, or narrower columns for tools like Caja.

That convention gave the following appearance:

  • 2024-08-07, namely $(date +%F), *without time, or
  • 15:35:24, namely $(date +%T), without date.

I was hoping that approach would be used as default, for desktop vs server, but that hasn't happened. It would be nice if that approach was offered as an option, to reduce the imposed minimum real-estate for Caja directory listings.