def set_time(self, time):
        '''
        Converts time data into a pandas date object.

        Parameters
        ----------
        time: netcdf
            Contains time information.

        Returns
        -------
        pandas.DatetimeIndex
        '''
        times = num2date(time[:].squeeze(), time.units)
        self.time = pd.DatetimeIndex(pd.Series(times), tz=self.location.tz)