def METHOD_NAME(self):
    t1 = "2021-04-01T09:35:47.934+00:00"  # 1617269747.934
    t2 = "2021-05-24T18:29:04.285+00:00"  # 1621880944.285
    t3 = "2021-05-32T26:29:04.285+00:00"  # invalid time format
    parse_launchable_time1 = parse_launchable_timeformat(t1)
    parse_launchable_time2 = parse_launchable_timeformat(t2)
    self.assertEqual(parse_launchable_time1.timestamp(), 1617269747.934)
    self.assertEqual(parse_launchable_time2.timestamp(), 1621880944.285)
    self.assertEqual(INVALID_TIMESTAMP, parse_launchable_timeformat(t3))