"0 0,6-23/2 * * *" not supported

[bojiang]

https://unix.stackexchange.com/questions/67158/crontab-entry-with-hour-range-going-over-midnight

[adampl]

@Salamek This issue kicked me in the face today, as django-celery-beat relies on this package.

[adampl]

The test might look like this:

    def test_list_with_range_and_interval(self):
        self.assertEqual(
            "At 12:00 AM and between 06:00 AM and 11:59 PM every 2 hours",
            get_description("0 0,6-23/2 * * *", self.options)
        )

I've tried fixing it myself, but it seems too messed up...