By default NTP is not enabled on Ubuntu admin@Vigor3912:~$ timedtimedatectl status Local time: Wed 2023-03-01 18:45:33 +07 Universal time: Wed 2023-03-01 11:45:33 UTC RTC time: Wed 2023-03-01 11:17:43 Time zone: Asia/Bangkok (+07, +0700) System clock synchronized: no NTP service: n/a RTC in local TZ: no Then we need enable it sudo apt install ntp sudo... Continue Reading →