设置UTC时区命令
ln -sf /usr/share/zoneinfo/UTC /etc/localtime
具体案例：
执行前
[root@HOST etc]#cd /etc
[root@HOST etc]# ll | grep local
-rw-r--r--. 1 root root 19 Mar 25 2018 locale.conf
lrwxrwxrwx 1 root root 35 Mar 12 16:06 localtime -> ../usr/share/zoneinfo/Asia/Shanghai
[root@HOST etc]# date
Tue Mar 16 14:49:58 CST 2021
[root@HOST etc]# ln -sf /usr/share/zoneinfo/UTC /etc/localtime
执行后
[root@HOST etc]# date
Tue Mar 16 06:50:32 UTC 2021
[root@HOST etc]# ll | grep local
-rw-r--r--. 1 root root 19 Mar 25 2018 locale.conf
lrwxrwxrwx 1 root root 23 Mar 16 06:50 localtime -> /usr/share/zoneinfo/UTC
