def seconds_and_nanoseconds(dt):
if isinstance(dt, datetime):
dt = DateTime.from_native(dt)
zone_epoch = DateTime(1970, 1, 1, tzinfo=dt.tzinfo)
t = dt.to_clock_time() - zone_epoch.to_clock_time()
return t.seconds, t.nanoseconds
def test_conversion_to_t(self):
dt = DateTime(2018, 4, 26, 23, 0, 17.914390409)
t = dt.to_clock_time()
self.assertEqual(t, ClockTime(63660380417, 914390409))
