win/linux 双系统时差问题 - V2EX
mikicomo

win/linux 双系统时差问题

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  •   mikicomo Jun 20, 2016 1926 views
    This topic created in 3613 days ago, the information mentioned may be changed or developed.

    win8.1/Ubuntu 16.04 双系统时差问题,根据网上的解决方案:

    将 /etc/default/rcS 里的 UTC=yes 置为 UTC=no 

    可是并没有什么效果,求助 V 友。

    6 replies    2016-06-20 20:19:05 +08:00
    Testalias
        1
    Testalias  
       Jun 20, 2016 via iPhone
    这个问题在于两个系统的硬件时间解读不同, Linux 对于 BIOS 中的时间解读为 UTC ,然后根据系统设定的时区做加法+8 ; Windows 默认情况下将硬件时间设定为 localtime ,也就是已经计算过时区了,在跟 ntp 同步后将 localtime 写入 BIOS (这是历史遗留问题),所以双系统就会有 8 小时偏差,通常做法是在 win 的注册表中将 localtime 改为 utc ,设定 TimeIsUniversal 为 1 ,具体位置自己搜,再回到 Linux 同步好时间就行了。
    kkxxxxxxx
        2
    kkxxxxxxx  
       Jun 20, 2016
    同烦恼
    Testalias
        3
    Testalias  
       Jun 20, 2016 via iPhone
    我上面描述的不准确,具体的关于系统与硬件的四个时间可以参考 Arch 的 Wiki 。
    Testalias
        4
    Testalias  
       Jun 20, 2016 via iPhone
    不要将 Linux 的时间设定为 localtime ,也就是你问题中的设定方式是埋雷的做法,统一成 UTC 很方便
    mikicomo
        5
    mikicomo  
    OP
       Jun 20, 2016
    @Testalias 谢谢指导,我试试
    Testalias
        6
    Testalias  
       Jun 20, 2016   2
    手机打错了
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]

    "RealTimeIsUniversal"=dword:00000001


    https://wiki.archlinux.org/index.php/Time#Time_skew

    看这个就够了
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