[root@zabbix ~]# date
    Sun Jan 5 00:13:15 EST 2020
    [root@zabbix ~]#
    [root@zabbix ~]#
    [root@zabbix ~]# timedatectl
    Local time: Sun 2020-01-05 00:14:26 EST
    Universal time: Sun 2020-01-05 05:14:26 UTC
    RTC time: Sun 2020-01-05 05:14:27
    Time zone: America/New_York (EST, -0500)
    NTP enabled: yes
    NTP synchronized: yes
    RTC in local TZ: no
    DST active: no
    Last DST change: DST ended at
    Sun 2019-11-03 01:59:59 EDT
    Sun 2019-11-03 01:00:00 EST
    Next DST change: DST begins (the clock jumps one hour forward) at
    Sun 2020-03-08 01:59:59 EST
    Sun 2020-03-08 03:00:00 EDT
    [root@zabbix ~]# timedatectl set-timezone Asia/Shanghai
    [root@zabbix ~]# date
    Sun Jan 5 13:15:13 CST 2020
    [root@zabbix ~]#