Centos7修改系统时区

Centos7修改系统时区timezone

注意：修改Linux系统的时区以后，再安装jvm，jvm默认会使用系统的时区。

如果系统时区设置错误，安装jvm后，再修改系统的时区，但jvm的时区仍然用不变，除非添加jvm的启动参数：-D user.timezone=GMT+08

方法： timedatectl  set-timezone Asia/Shanghai

首先输入命令： timedatectl，查看当前的time zone

# timedatectl 

Warning: Ignoring the TZ variable. Reading the system's time zone setting only.

      Local time: Mon 2016-11-21 01:52:42 EST

  Universal time: Mon 2016-11-21 06:52:42 UTC

        RTC time: Mon 2016-11-21 06:52:42

       Time zone: America/New_York (EST, -0500)

     NTP enabled: n/a

NTP synchronized: no

 RTC in local TZ: no

      DST active: no

 Last DST change: DST ended at

                  Sun 2016-11-06 01:59:59 EDT

                  Sun 2016-11-06 01:00:00 EST

 Next DST change: DST begins (the clock jumps one hour forward) at

                  Sun 2017-03-12 01:59:59 EST

                  Sun 2017-03-12 03:00:00 EDT

                  

设置时区为CST(东8区)

# timedatectl set-timezone Asia/Shanghai

Warning: Ignoring the TZ variable. Reading the system's time zone setting only.

      Local time: Mon 2016-11-21 14:52:59 CST

  Universal time: Mon 2016-11-21 06:52:59 UTC

        RTC time: Mon 2016-11-21 06:52:59

       Time zone: Asia/Shanghai (CST, +0800)

     NTP enabled: n/a

NTP synchronized: no

 RTC in local TZ: no

      DST active: n/a

[root@localhost ~]#