查看GNU/Linux Tips的源代码

== Timezone ==

<source lang=bash>
$ sudo timedatectl set-timezone Asia/Shanghai

or:

$ sudo ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

or:

$ sudo dpkg-reconfigure tzdata
</source>

date 获取时间，时区正确，但 cron 却把 crontab 里的时间配置认成 UTC 时间：

<source lang=bash>
root@tesla:~# cat /etc/timezone
Asia/Shanghai
root@tesla:~# cat /etc/localtime
TZif2UTCTZif2UTC
UTC0
root@tesla:~# timedatectl status
Warning: Ignoring the TZ variable. Reading the system's time zone setting only.

      Local time: Mon 2025-12-22 02:55:43 UTC
  Universal time: Mon 2025-12-22 02:55:43 UTC
        RTC time: n/a
       Time zone: Asia/Shanghai (UTC, +0000)
     NTP enabled: no
NTP synchronized: yes
 RTC in local TZ: no
      DST active: n/a
root@tesla:~# cp /etc/localtime  /etc/locltime-old
root@tesla:~# rm /etc/localtime
root@tesla:~# ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
root@tesla:~# timedatectl status
Warning: Ignoring the TZ variable. Reading the system's time zone setting only.

      Local time: Mon 2025-12-22 10:56:47 CST
  Universal time: Mon 2025-12-22 02:56:47 UTC
        RTC time: n/a
       Time zone: Asia/Shanghai (CST, +0800)
......
......
</source>


<br>