Set the date/time indicator to 12 hour time

There's two implementations of the date/time on a MATE panel:

  • MATE Clock Applet (default on most distros)
  • Date/Time Indicator (:ubuntu_mate: and :ubuntu: default)

The Indicators program can customise a few things, but it lacks the option for setting the format. For now, this can be set from the :terminal: Terminal.

Ayatana Indicators (>= 21.04)

gsettings set org.ayatana.indicator.datetime time-format '12-hour'


gsettings set com.canonical.indicator.datetime time-format '12-hour'

This reply is a bit late, but here it is. I added this to my post on date-time. The dconf setting is different again on 20.10, so I provided that update, too.

The time and date manager freezes and I would have to force quit on ubuntu 20.04 and not allow any changes. So I found the command lines to change the Time zone, and then your info to get the format to 12 hours. Thanks.