Solution to inconsistency between RTC time and world time on the server

brief introduction ： On the server RTC The solution to the inconsistency between time and world time

Recently, it was found that the clock time of the server is inconsistent with the world time 、

No matter how to modify ntp server Neither. ,data Command view is faster than world time 20 About minutes , Use timedatctl Command view , It turns out that RTC Time

[[email protected] ~]# date
Wed May 11 10:11:02 UTC 2022
[[email protected] ~]# timedatectl status
      Local time: Wed 2022-05-11 09:50:40 UTC
  Universal time: Wed 2022-05-11 09:50:40 UTC
        RTC time: Wed 2022-05-11 10:11:20
       Time zone: UTC (UTC, +0000)
     NTP enabled: yes
NTP synchronized: no
 RTC in local TZ: no
      DST active: n/a

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need hwclock Resynchronize

sudo hwclock --systohc

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View after resynchronization

[[email protected] ~] date
Wed May 11 09:53:43 UTC 2022
[[email protected] ~] timedatectl status
      Local time: Wed 2022-05-11 09:53:50 UTC
  Universal time: Wed 2022-05-11 09:53:50 UTC
        RTC time: Wed 2022-05-11 09:53:50
       Time zone: UTC (UTC, +0000)
     NTP enabled: yes
NTP synchronized: no
 RTC in local TZ: no
      DST active: n/a

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