sudo timedatectl set-local-rtc 1 

$ timedatectl            Local time: 六 2016-04-23 09:05:54 CST  Universal time: 六 2016-04-23 01:05:54 UTC     RTC time: 六 2016-04-23 09:05:54     Time zone: Asia/Shanghai (CST, +0800)  Network time on: yes NTP synchronized: no  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'.