def METHOD_NAME(self):
    # https://github.com/IronLanguages/ironpython3/issues/1121
    utcoffset = datetime.timedelta(hours=-7)
    tz = datetime.timezone(utcoffset)
    dt = datetime.datetime(2001, 9, 23, 20, 10, 55, tzinfo=tz)
    self.assertEqual(dt.strftime("%Z%z"), 'UTC-07:00-0700')