def set_system_time(self, time_source, ntp_server, date_format,
                        time_format, time_zone, is_dst, dst, year,
                        mon, day, hour, minute, sec, callback=None):
        '''
        Set systeim time
        '''
        if ntp_server not in ['time.nist.gov',
                              'time.kriss.re.kr',
                              'time.windows.com',
                              'time.nuri.net',
                             ]:
            raise ValueError('Unsupported ntpServer')

        params = {'timeSource': time_source,
                  'ntpServer' : ntp_server,
                  'dateFormat': date_format,
                  'timeFormat': time_format,
                  'timeZone'  : time_zone,
                  'isDst'     : is_dst,
                  'dst'       : dst,
                  'year'      : year,
                  'mon'       : mon,
                  'day'       : day,
                  'hour'      : hour,
                  'minute'    : minute,
                  'sec'       : sec
                 }

        return self.execute_command('setSystemTime', params, callback=callback)
Set systeim time