code: def getTime(self):
      
      command = '$GT'
      time = self.sendCommand(command)
      if time == ['OK','165', '165', '165', '165', '165', '85']:
        return NULL
      else:
        return datetime.datetime(year = int(time[1])+2000,
                                 month = int(time[2]),
                                 day = int(time[3]),
                                 hour = int(time[4]),
                                 minute = int(time[5]),
                                 second = int(time[6]))
docs: Get the RTC time.  Returns a datetime object, or NULL if the clock is not set