Will things like indicator applet complete be configurable in future LTS's?
I would like to get rid of the time on the left.
Try and right click on the thing you wish to remove from panel
Then choose option : "Lock to panel" and it will uncheck it
After it is unchecked it will allow you to choose an option "remove from panel" when you right click on the selected item from panel again
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First - to take a timed screen-shot you can see tutorial on how to capture screen when you've got some menues open and print-screen won't register:
Second, if you RIGHT-CLICK - on any applet added to panel you should see this:
And when you click "Lock to panel" - it should unlock it and you will be able to press "Remove from panel"
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The key word here is "should unlock it."
Several of the things I want gone, do not show "lock to panel."
It is not a big deal having two instances of the time in a panel.
I used to be a perfectionist. But some counseling helped with that.
Have a good day. 
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The issue is that you have 3 panel applets that have a date component. The one on the right, not being associated with a Power button, must be the "Clock" applet.
The two on the left, which show the time as 7:30:29 AM, are each part of a combo App that includes
- the power button,
- the volume control,
- the notification control,
- the network status control,
- the multimedia player control, and
- the assistive technologies control
are all part of the "Indicator Applet Complete".
Since you won't have the "Power" button unless you keep one of those two, you will likely need to either
- get rid of the "Clock" applet, or
- replace one of the two "Indicator Applet Complete" apps with the "Indicator Applet", so that you may keep your "Clock" applet as is, which is what you seem to be indicating.
For mine, "Indicator Applet", the date is not an integrated component, which is why I have the "Clock" applet to the left of the other notification elements, as shown here:
If I were you, I would try right clicking on any one of the "Power" icon in order to obtain the expected menu
then click on "Remove from Panel" (for me, that overrides any "Lock", which is intended more for placement control than for protecting its existence on the Panel. ).
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I disabled time on the indicator applet complete and use the clock applet instead, but you do not have to use that. Start up applications will do that for you.
Further cusomiztion can be done with dconf editor GUI:
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It already is and there are several ways to do that.
either
- Open the mate-control-center and select indicators.
Select date&time and click on 'enable this indicator on login'
or
- The other way is to untag the 'ayatana indicator date&time' in the startup-applications
or
- sudo apt remove ayatana-indicator-datetime
Indicator applet complete is just a visual container to hold these indicators and nothing more.
EDIT: see @jymm's post for walkthrough and screenshots
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Thanks tkn. It helped a lot.
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I do not need the power button.
I have some individual scripts for power off and restart.
clear
sleep 3
echo ice_cream_tastes_good | sudo -S systemctl poweroff
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Is it also possible to use 24-hour format in time/date indicator? I didn't find the option.
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from the commandline:
gsettings set org.ayatana.indicator.datetime time-format '24-hour'
or, if you prefer a GUI, use dconf-editor. The path to the time-format setting is
/org/ayatana/indicator/datetime/time-format
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Thank you, it works. But why do I have to set it in gsettings, when my locale uses 24-hour format:
LC_TIME=en_AU.UTF-8
$ date
Thu 24 Apr 2025 23:33:17 CEST
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My locale (NL_nl) also uses 24-hour format and it works without problem on 'locale-default'. I suspect that the entry for Australia is erroneously associated with '12-hour' time format.
In my locale, the month and day are erroneously switched so I used the 'custom' setting to get my weekday-day-month notation.
I also don't know for sure if the MATE desktop is using LC_TIME as reference.
It should, however, at least follow the setting of the language selector in the control-center where also things like currency symbols etc. are defined.
EDIT: By the way, it looks like you are not the only one:
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