timedatectl
範例
$ timedatectl
Local time: Sat 2018-05-19 00:54:56 CST
Universal time: Fri 2018-05-18 16:54:56 UTC
RTC time: Fri 2018-05-18 16:54:56
Time zone: Asia/Taipei (CST, +0800)
System clock synchronized: yes
systemd-timesyncd.service active: yes
RTC in local TZ: no