How to Setup the Date Timezone and NTP for Ubuntu 22.04 LTS

Check TimeZone

• Check Current TimeZone and NTP Status

timedatectl

ubuntu@NUC-TM:~$ timedatectl
               Local time: ส. 2022-09-10 01:36:47 +07
           Universal time: ศ. 2022-09-09 22:36:47 UTC
                 RTC time: จ. 2009-01-19 04:10:25
                Time zone: Asia/Istanbul(+03, +0300)
System clock synchronized: no
              NTP service: n/a
          RTC in local TZ: no

• Checking the list of available time zones

timedatectl list-timezones

• you can use the grep command to limit the result

timedatectl list-timezones | grep -i bangkok

• Changing the time zone

sudo timedatectl set-timezone Asia/Bangkok

• Check TimeZone and NTP Status

Setup NTP Service

• Test Enable NTP

sudo timedatectl set-ntp on

> Failed to set ntp: NTP not supported

• If system tell "Failed to set ntp: NTP not supported". You need to install systemd-timesyncd

sudo apt-get update
sudo apt install systemd-timesyncd

• Activate NTP and Enter your admin password for time synchronization

timedatectl set-ntp true

• Check Current TimeZone and NTP Status

timedatectl

Enabling/Disabling time synchronization

• Enable time synchronization. >> Set NTP Service active

sudo timedatectl set-ntp on

• Disable time synchronization. >> Set NTP Service inactive

sudo timedatectl set-ntp off

Case time does not sync

• check service status

systemctl status systemd-timesyncd

• the root cause is a network issue (time out to connect NTP server)

• After fixing network issue, restart the service and check service systemd-timesyncd status

systemctl restart systemd-timesyncd