kazulog@sv1:~$ cat /etc/os-release | head -2
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
kazulog@sv1:~$ date
Fri Sep 11 16:39:04 JST 2026
kazulog@sv1:~$ sudo chronyc makestep
200 OK
kazulog@sv1:~$ date
Fri Sep 11 16:34:17 JST 2026
kazulog@sv1:~$ chronyc tracking
Reference ID    : C0A86401 (192.168.100.1)
Stratum         : 4
Ref time (UTC)  : Fri Sep 11 07:33:24 2026
System time     : 0.000000000 seconds fast of NTP time
Last offset     : +0.000182769 seconds
RMS offset      : 89.999153137 seconds
Frequency       : 4.617 ppm fast
Residual freq   : -5.942 ppm
Skew            : 16.834 ppm
Root delay      : 0.004045914 seconds
Root dispersion : 0.004795363 seconds
Update interval : 65.0 seconds
Leap status     : Normal
kazulog@sv1:~$ timedatectl | head -6
               Local time: Fri 2026-09-11 16:34:22 JST
           Universal time: Fri 2026-09-11 07:34:22 UTC
                 RTC time: Fri 2026-09-11 07:34:22
                Time zone: Asia/Tokyo (JST, +0900)
System clock synchronized: no
              NTP service: active
kazulog@sv1:~$ sudo journalctl -u chrony --since "-15 min" --no-pager | tail -8
Sep 11 16:27:52 sv1 chronyd[3650]: System clock was stepped by -1.485292 seconds
Sep 11 16:27:52 sv1 chronyd[3650]: System clock TAI offset set to 37 seconds
Sep 11 16:34:58 sv1 chronyd[3650]: Forward time jump detected!
Sep 11 16:34:58 sv1 chronyd[3650]: Can't synchronise: no selectable sources (0 unreachable sources)
Sep 11 16:35:24 sv1 chronyd[3650]: System clock was stepped by -0.000000 seconds
Sep 11 16:37:13 sv1 chronyd[3650]: Selected source 192.168.100.1
Sep 11 16:37:13 sv1 chronyd[3650]: System clock wrong by -299.997180 seconds
Sep 11 16:34:14 sv1 chronyd[3650]: System clock was stepped by -289.988321 seconds