It seems that you have solved the problem but here is another hint.
"timedatectl" is a good high-level tool for querying and adjusting time
settings. Without command-line arguments it prints a lot of useful info:
$ timedatectl
Local time: ke 2024-03-06 07:33:00 EET
Universal time: ke 2024-03-06 05:33:00 UTC
RTC time: ke 2024-03-06 05:33:00
Time zone: Europe/Helsinki (EET, +0200)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
See "timedatectl -h" or manual page for more info.
Thank Likonen, timedatectl is useful, ntp isn't installed
System clock synchronized: no NTP service: n/a RTC in local TZ: no
perhaps it's because i didn't install a set of standard tools during deb11 installation