Expected behaviour
If systemd-timesyncd is active and running, time-admin the GUI should show the computer time being synchronized with the internet
Actual behaviour / Steps to reproduce the behaviour
The GUI assumes the time is configured manually. Users can edit the system time in the GUI - which then got reset by the synchronization service
Linux Distribution
Linux Mint 21.3 MATE,
Linux Mint 21.3 Xfce
Link to bugreport of your Distribution
linuxmint/linuxmint#644