V字龍 (Vdragon) says to Ubuntu 台灣社群
(shell) timedatectl status Local time: 日 2017-04-23 00:37:33 CST Universal time: 六 2017-04-22 16:37:33 UTC RTC time: 日 2017-04-23 00:37:33 Time zone: Asia/Taipei (CST, +0800) Network time on: yes NTP synchronized: yes RTC in local TZ: yes Warning: The system is configured to read the RTC time in the local time zone. This mode can not be fully supported. It will create various problems with time zone changes and daylight saving time adjustments. The RTC time is never updated, it relies on external facilities to maintain it. If at all possible, use RTC in UTC by calling 'timedatectl set-local-rtc 0'.