How to use the cftime.DatetimeGregorian function in cftime

To help you get started, we’ve selected a few cftime examples, based on popular ways it is used in public projects.

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Unidata / cftime / test / test_cftime.py View on Github

dt.replace(day=dt.day + 1, hour=dt.hour + 1))

        # test the Julian/Gregorian transition
        self.assertEqual(self.date4_gregorian + self.delta,
                         DatetimeGregorian(1582, 10, 15, 1))

        # The Julian calendar has no invalid dates
        self.assertEqual(self.date8_julian + self.delta,
                         DatetimeJulian(1582, 10, 5, 1))

        # Test going over the year boundary.
        self.assertEqual(DatetimeGregorian(2000, 11, 1) + timedelta(days=30 + 31),
                         DatetimeGregorian(2001, 1, 1))

        # Year 2000 is a leap year.
        self.assertEqual(DatetimeGregorian(2000, 1, 1) + timedelta(days=31 + 29),
                         DatetimeGregorian(2000, 3, 1))

        # Test the 366_day calendar.
        self.assertEqual(DatetimeAllLeap(1, 1, 1) + timedelta(days=366 * 10 + 31),
                         DatetimeAllLeap(11, 2, 1))

        # The Gregorian calendar has no year zero.
        self.assertEqual(DatetimeGregorian(-1, 12, 31) + self.delta,
                         DatetimeGregorian(1, 1, 1, 1))

        def invalid_add_1():
            self.date1_365_day + 1

        def invalid_add_2():
            1 + self.date1_365_day

Unidata / cftime / test / test_cftime.py View on Github

assert (d.year == -100)
        assert (d.month == 3)
        assert (d.day == 2)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        # test dayofwk, dayofyr attribute setting (cftime issue #13)
        d1 = DatetimeGregorian(2020,2,29)
        d2 = real_datetime(2020,2,29)
        assert (d1.dayofwk == d2.dayofwk == 5)
        assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,29,23,59,59)
        d2 = real_datetime(2020,2,29,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 5)
        assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,28,23,59,59)
        d2 = real_datetime(2020,2,28,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 59)
        d1 = DatetimeGregorian(1700,1,1)
        d2 = real_datetime(1700,1,1)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 1)
        # last day of Julian Calendar (Thursday)
        d1 = DatetimeJulian(1582, 10, 4, 12)
        d2 = DatetimeGregorian(1582, 10, 4, 12)
        assert (d1.dayofwk == d2.dayofwk == 3)
        assert (d1.dayofyr == d2.dayofyr == 277)
        # Monday in proleptic gregorian calendar
        d1 = DatetimeProlepticGregorian(1582, 10, 4, 12)
        d2 = real_datetime(1582,10,4,12)
        assert (d1.dayofwk == d2.dayofwk == 0)

Unidata / cftime / test / test_cftime.py View on Github

def invalid_day():
            DatetimeGregorian(1, 1, 32) + self.delta

Unidata / cftime / test / test_cftime.py View on Github

# subtracting datetime.datetime from cftime.datetime
        delta = self.date3_gregorian - self.datetime_date1
        # real_date2 and real_date1 are exactly one day apart
        self.assertEqual(total_seconds(delta), -86400)

        # Test the Julian/Gregorian transition.
        self.assertEqual(self.date5_gregorian - self.delta,
                         DatetimeGregorian(1582, 10, 3, 23))

        # The proleptic Gregorian calendar does not have invalid dates.
        self.assertEqual(self.date6_proleptic_gregorian - self.delta,
                         DatetimeProlepticGregorian(1582, 10, 13, 23))

        # The Gregorian calendar has no year zero.
        self.assertEqual(DatetimeGregorian(1, 1, 1) - self.delta,
                         DatetimeGregorian(-1, 12, 30, 23))

        # The 360_day calendar has year zero.

        self.assertEqual(self.date7_360_day - timedelta(days=2000 * 360),
                         Datetime360Day(0, 1, 1))

        # Test going over the year boundary.
        self.assertEqual(DatetimeGregorian(2000, 3, 1) - timedelta(days=29 + 31 + 31),
                         DatetimeGregorian(1999, 12, 1))

        # Year 2000 is a leap year.
        self.assertEqual(DatetimeGregorian(2000, 3, 1) - self.delta,
                         DatetimeGregorian(2000, 2, 28, 23))

        def invalid_sub_1():
            self.date1_365_day - 1

Unidata / cftime / test / test_cftime.py View on Github

# Test going over the year boundary.
        self.assertEqual(DatetimeGregorian(2000, 11, 1) + timedelta(days=30 + 31),
                         DatetimeGregorian(2001, 1, 1))

        # Year 2000 is a leap year.
        self.assertEqual(DatetimeGregorian(2000, 1, 1) + timedelta(days=31 + 29),
                         DatetimeGregorian(2000, 3, 1))

        # Test the 366_day calendar.
        self.assertEqual(DatetimeAllLeap(1, 1, 1) + timedelta(days=366 * 10 + 31),
                         DatetimeAllLeap(11, 2, 1))

        # The Gregorian calendar has no year zero.
        self.assertEqual(DatetimeGregorian(-1, 12, 31) + self.delta,
                         DatetimeGregorian(1, 1, 1, 1))

        def invalid_add_1():
            self.date1_365_day + 1

        def invalid_add_2():
            1 + self.date1_365_day

        for func in [invalid_add_1, invalid_add_2]:
            self.assertRaises(TypeError, func)

Unidata / cftime / test / test_cftime.py View on Github

assert (d.minute == 0)
        assert (d.second == 0)
        # test dayofwk, dayofyr attribute setting (cftime issue #13)
        d1 = DatetimeGregorian(2020,2,29)
        d2 = real_datetime(2020,2,29)
        assert (d1.dayofwk == d2.dayofwk == 5)
        assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,29,23,59,59)
        d2 = real_datetime(2020,2,29,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 5)
        assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,28,23,59,59)
        d2 = real_datetime(2020,2,28,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 59)
        d1 = DatetimeGregorian(1700,1,1)
        d2 = real_datetime(1700,1,1)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 1)
        # last day of Julian Calendar (Thursday)
        d1 = DatetimeJulian(1582, 10, 4, 12)
        d2 = DatetimeGregorian(1582, 10, 4, 12)
        assert (d1.dayofwk == d2.dayofwk == 3)
        assert (d1.dayofyr == d2.dayofyr == 277)
        # Monday in proleptic gregorian calendar
        d1 = DatetimeProlepticGregorian(1582, 10, 4, 12)
        d2 = real_datetime(1582,10,4,12)
        assert (d1.dayofwk == d2.dayofwk == 0)
        assert (d1.dayofyr == d2.dayofyr == 277)
        # issue 71: negative reference years
        # https://coastwatch.pfeg.noaa.gov/erddap/convert/time.html
        # gives 2446433 (365 days more - is it counting year 0?)

Unidata / netcdf4-python / test / tst_netcdftime.py View on Github

def invalid_year():
            DatetimeGregorian(0, 1, 1) + self.delta

Unidata / cftime / test / test_cftime.py View on Github

assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,29,23,59,59)
        d2 = real_datetime(2020,2,29,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 5)
        assert (d1.dayofyr == d2.dayofyr == 60)
        d1 = DatetimeGregorian(2020,2,28,23,59,59)
        d2 = real_datetime(2020,2,28,23,59,59)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 59)
        d1 = DatetimeGregorian(1700,1,1)
        d2 = real_datetime(1700,1,1)
        assert (d1.dayofwk == d2.dayofwk == 4)
        assert (d1.dayofyr == d2.dayofyr == 1)
        # last day of Julian Calendar (Thursday)
        d1 = DatetimeJulian(1582, 10, 4, 12)
        d2 = DatetimeGregorian(1582, 10, 4, 12)
        assert (d1.dayofwk == d2.dayofwk == 3)
        assert (d1.dayofyr == d2.dayofyr == 277)
        # Monday in proleptic gregorian calendar
        d1 = DatetimeProlepticGregorian(1582, 10, 4, 12)
        d2 = real_datetime(1582,10,4,12)
        assert (d1.dayofwk == d2.dayofwk == 0)
        assert (d1.dayofyr == d2.dayofyr == 277)
        # issue 71: negative reference years
        # https://coastwatch.pfeg.noaa.gov/erddap/convert/time.html
        # gives 2446433 (365 days more - is it counting year 0?)
        # however http://aa.usno.navy.mil/data/docs/JulianDate.php gives
        # 2446068, which agrees with us
        units = "days since -4713-01-01T00:00:00Z"
        t = date2num(datetime(1985,1,2), units, calendar="standard")
        assert_almost_equal(t, 2446068)

Unidata / cftime / test / test_cftime.py View on Github

def invalid_gregorian_date():
            DatetimeGregorian(1582, 10, 5) + self.delta

Unidata / cftime / test / test_cftime.py View on Github

# The proleptic Gregorian calendar does not have invalid dates.
        self.assertEqual(self.date6_proleptic_gregorian - self.delta,
                         DatetimeProlepticGregorian(1582, 10, 13, 23))

        # The Gregorian calendar has no year zero.
        self.assertEqual(DatetimeGregorian(1, 1, 1) - self.delta,
                         DatetimeGregorian(-1, 12, 30, 23))

        # The 360_day calendar has year zero.

        self.assertEqual(self.date7_360_day - timedelta(days=2000 * 360),
                         Datetime360Day(0, 1, 1))

        # Test going over the year boundary.
        self.assertEqual(DatetimeGregorian(2000, 3, 1) - timedelta(days=29 + 31 + 31),
                         DatetimeGregorian(1999, 12, 1))

        # Year 2000 is a leap year.
        self.assertEqual(DatetimeGregorian(2000, 3, 1) - self.delta,
                         DatetimeGregorian(2000, 2, 28, 23))

        def invalid_sub_1():
            self.date1_365_day - 1

        def invalid_sub_2():
            1 - self.date1_365_day

        def invalid_sub_3():
            self.date1_365_day - self.datetime_date1

        def invalid_sub_4():

How to use the cftime.DatetimeGregorian function in cftime

To help you get started, we’ve selected a few cftime examples, based on popular ways it is used in public projects.

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