How to fix incorrect time display in Linux Lite 5.6?

Question

linux

Hello.
I installed Linux Lite 5.6 and soon noticed that the time is displayed incorrectly.
For example, at 19:55 the time was 7:55. It could have just been 12 hour mode, but at 11:30 o'clock the clock showed 1:30.
What could be causing this and how can it be resolved?

Answer 1

See what the command shows:
sudo timedatectl
And then either fix the zone:
sudo timedatectl set-timezone 'Russia/Moscow'
Or disable receiving time over the network and set it manually:

sudo timedatectl set-ntp no
sudo timedatectl --set-time "2021-09-14 16:12:00"