Takes a naive timezone with an utc value and return it formatted as a
        local timezone.

def _to_timezone(self, dt):
        """Takes a naive timezone with an utc value and return it formatted as a
        local timezone."""
        tz = self._get_tz()
        utc_dt = pytz.utc.localize(dt)
        return utc_dt.astimezone(tz)