code: def find_time_base(self, gps, first_ms_stamp):
          '''work out time basis for the log - new style'''
          t = self._gpsTimeToTime(gps.Week, gps.TimeMS)
          self.set_timebase(t - gps.T*0.001)
          self.timestamp = self.timebase + first_ms_stamp*0.00f find_time_base(self, gps, first_ms_stamp):
          '''work out time basis for the log - new style'''
          t = self._gpsTimeToTime(gps.Week, gps.TimeMS)
          self.set_timebase(t - gps.T*0.001)
          self.timestamp = self.timebase + first_ms_stamp*0.001
docs: work out time basis for the log - new style