Comment 3 for bug 1937238

Hmm. The systemd-timesyncd package is installed and systemd-timesyncd.service is enabled.

raek@mizar:~/code/raek-totp-token/firmware$ apt-cache policy systemd-timesyncd
systemd-timesyncd:
  Installed: 245.4-4ubuntu3.11
  Candidate: 245.4-4ubuntu3.11
  Version table:
 *** 245.4-4ubuntu3.11 500
        500 http://se.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        500 http://se.archive.ubuntu.com/ubuntu focal-security/main amd64 Packages
        100 /var/lib/dpkg/status
     245.4-4ubuntu3 500
        500 http://se.archive.ubuntu.com/ubuntu focal/main amd64 Packages
raek@mizar:~/code/raek-totp-token/firmware$ systemctl status systemd-timesyncd.service
● systemd-timesyncd.service - Network Time Synchronization
     Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2021-07-22 11:06:53 CEST; 3 days ago
       Docs: man:systemd-timesyncd.service(8)
   Main PID: 792 (systemd-timesyn)
     Status: "Initial synchronization to time server [2a01:3f7::1]:123 (ntp.se)."
      Tasks: 2 (limit: 9415)
     Memory: 3.2M
     CGroup: /system.slice/systemd-timesyncd.service
             └─792 /lib/systemd/systemd-timesyncd

Jul 22 11:06:53 mizar systemd[1]: Starting Network Time Synchronization...
Jul 22 11:06:53 mizar systemd[1]: Started Network Time Synchronization.
Jul 22 11:06:59 mizar systemd-timesyncd[792]: Network configuration changed, trying to establish connection.
Jul 22 11:07:01 mizar systemd-timesyncd[792]: Network configuration changed, trying to establish connection.
Jul 22 11:07:02 mizar systemd-timesyncd[792]: Network configuration changed, trying to establish connection.
Jul 22 11:07:02 mizar systemd-timesyncd[792]: Network configuration changed, trying to establish connection.
Jul 22 11:07:04 mizar systemd-timesyncd[792]: Network configuration changed, trying to establish connection.
Jul 22 11:07:04 mizar systemd-timesyncd[792]: Initial synchronization to time server [2a01:3f7::1]:123 (ntp.se).

I have done some NTP-related configuration (added an NTP server more close by(. I'll try to find all deviations from the default I have made and come back.