wangjingwangjing-pc:~$ timedatectlLocal time: 二 2016-12-06 17:11:43 CSTUniversal time: 二 2016-12-06 09:11:43 UTCRTC time: 二 2016-12-06 17:11:42Time zone: Asia/Shanghai (CST, 0800)Network time on: yesNTP synchronized: noRTC in local TZ: yesWarning: 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 problemswith time zone changes and daylight saving time adjustments. The RTCtime is never updated, it relies on external facilities to maintain it.If at all possible, use RTC in UTC by callingtimedatectl set-local-rtc 0.wangjingwangjing-pc:~$ sudo timedatectl set-local-rtc 1