Indicator Applet Complete Clock Format

Not exactly the biggest issue in the world but, I'd like to change the format of the clock in the indicator applet to 24 hour.

As far as I can tell there is no way to do this that I can find but I've seen a few screenshots showing it is possible.

Any help would be appreciated.

Thank you so much. Not sure why that didn't pop up when I searched. Probably being to wordy.

There's also the command line version - but "24-hour" not "12-hour":


I just installed Ubuntu Mate as the Ubuntu distro kept causing my system to freeze. Thus, I am new to Mate. Anyway, here is an update for anyone using 24.04 LTS. The location of the setting was changed since this post was answered.

dconf-editor: org/ayatana/indicator/datetime/time-format
terminal: gsettings set org.ayatana.indicator.datetime time-format '24-hour'


Welcome @BMN to the community!