salt-minion:
    ----------
    timezone:
        
        Management of timezones
        =======================
        
        The timezone can be managed for the system:
        
            America/Denver:
              timezone.system
        
        The system and the hardware clock are not necessarily set to the same time.
        By default, the hardware clock is set to localtime, meaning it is set to the
        same time as the system clock. If `utc` is set to True, then the hardware clock
        will be set to UTC, and the system clock will be an offset of that.
        
            America/Denver:
              timezone.system:
                - utc: True
        
        .. _here: https://help.ubuntu.com/community/UbuntuTime#Multiple_Boot_Systems_Time_Conflicts
        
        The Ubuntu community documentation contains an explanation of this setting, as
        it applies to systems that dual-boot with Windows. This is explained in greater
        detail here_.
    timezone.system:
        
            Set the timezone for the system.
        
            name
                The name of the timezone to use (e.g.: America/Denver)
        
            utc
                Whether or not to set the hardware clock to UTC (default is True)

ES:
vi /srv/salt/base/timezone.sls
Asia/Shanghai:
  timezone.system:
    - name: Asia/Shanghai