# server
$ timedatectl 
               Local time: Tue 2026-06-02 01:05:15 CEST
           Universal time: Mon 2026-06-01 23:05:15 UTC
                 RTC time: Mon 2026-06-01 23:09:40
                Time zone: Europe/Berlin (CEST, +0200)
System clock synchronized: no
              NTP service: n/a
          RTC in local TZ: no 

# laptop:
$ timedatectl
               Local time: Tue 2026-06-02 00:09:54 BST
           Universal time: Mon 2026-06-01 23:09:54 UTC
                 RTC time: Mon 2026-06-01 23:09:54
                Time zone: Europe/London (BST, +0100)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: no