'Also test the reverse, around the leap second
(round-trip test closes #2077)'

def test_ut1_to_utc(self):

    t = Time(['2012-06-30    12:00:00', '2012-06-30    23:59:59', '2012-07-01    00:00:00', '2012-07-01    00:00:01', '2012-07-01    12:00:00'], scale='ut1')
    t_utc_jd = t.utc.jd
    t_comp = np.array([2456109.000001005, 2456109.499983644, 2456109.4999952177, 2456109.5000067917, 2456109.9999952167])
    assert allclose_jd(t_utc_jd, t_comp)
    t_back = t.utc.ut1
    assert allclose_jd(t.jd, t_back.jd)
