API: offsets.Day is always calendar-day by jbrockmendel · Pull Request #61985 · pandas-dev/pandas (original) (raw)

idx = date_range("2001-09-20 15:59", "2001-09-20 16:00", freq="min", tz="Australia/Sydney")
s = Series([1, 2], index=idx)
    
result = s.resample("D", closed="right", label="right").mean()
ex_index = date_range("2001-09-21", periods=1, freq="D", tz="Australia/Sydney")
expected = Series([1.5], index=ex_index)
    
tm.assert_series_equal(result, expected)  # Fails with actual result being...

ex_index = pd.date_range("2001-09-20", "2001-09-21", tz="Australia/Sydney", freq="D")
expected = Series([np.nan, 1.5], index=ex_index)