How to use the cftime.DateFromJulianDay 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.

Secure your code as it's written. Use Snyk Code to scan source code in minutes - no build needed - and fix issues immediately.

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

d = DateFromJulianDay(2450022.5, "standard")
        assert (d.year == 1995)
        assert (d.month == 11)
        assert (d.day == 1)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        # cftime issue #52
        d = DateFromJulianDay(1684958.5,calendar='gregorian')
        assert (d.year == -100)
        assert (d.month == 3)
        assert (d.day == 2)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        d = DateFromJulianDay(1684958.5,calendar='standard')
        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)

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

assert_equal(str(d), str(date))
        # test proleptic julian calendar.
        d = datetime(1858, 11, 17, 12)
        t = self.cdftime_jul.date2num(d)
        assert_almost_equal(t, 7528932.0)
        d1 = datetime(1582, 10, 4, 23)
        d2 = datetime(1582, 10, 15, 0)
        assert_almost_equal(
            self.cdftime_jul.date2num(d1) + 241.0, self.cdftime_jul.date2num(d2))
        date = self.cdftime_jul.num2date(t)
        self.assertTrue(str(d) == str(date))
        # test julian day from date, date from julian day
        d = datetime(1858, 11, 17)
        mjd = JulianDayFromDate(d)
        assert_almost_equal(mjd, 2400000.5)
        date = DateFromJulianDay(mjd)
        self.assertTrue(str(date) == str(d))
        # test iso 8601 units string
        d = datetime(1970, 1, 1, 1)
        t = self.cdftime_iso.date2num(d)
        assert_equal(np.around(t), 3600)
        # test fix for issue 75 (seconds hit 60 at end of month,
        # day goes out of range).
        t = 733499.0
        d = num2date(t, units='days since 0001-01-01 00:00:00')
        assert_equal(d.strftime(dateformat), '2009-04-01 00:00:00')
        # test edge case of issue 75 for numerical problems
        for t in (733498.999, 733498.9999, 733498.99999, 733498.999999, 733498.9999999):
            d = num2date(t, units='days since 0001-01-01 00:00:00')
            t2 = date2num(d, units='days since 0001-01-01 00:00:00')
            assert(abs(t2 - t) &lt; 1e-5)  # values should be less than second
        # Check equality testing

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

d = DateFromJulianDay(2450022.5, "standard")
        assert (d.year == 1995)
        assert (d.month == 11)
        assert (d.day == 1)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        # cftime issue #52
        d = DateFromJulianDay(1684958.5,calendar='gregorian')
        assert (d.year == -100)
        assert (d.month == 3)
        assert (d.day == 2)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        d = DateFromJulianDay(1684958.5,calendar='standard')
        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)

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

assert_equal(str(d), str(date))
        # test proleptic julian calendar.
        d = datetime(1858, 11, 17, 12)
        t = self.cdftime_jul.date2num(d)
        assert_almost_equal(t, 7528932.0)
        d1 = datetime(1582, 10, 4, 23)
        d2 = datetime(1582, 10, 15, 0)
        assert_almost_equal(
            self.cdftime_jul.date2num(d1) + 241.0, self.cdftime_jul.date2num(d2))
        date = self.cdftime_jul.num2date(t)
        self.assertTrue(str(d) == str(date))
        # test julian day from date, date from julian day
        d = datetime(1858, 11, 17)
        mjd = JulianDayFromDate(d)
        assert_almost_equal(mjd, 2400000.5)
        date = DateFromJulianDay(mjd)
        self.assertTrue(str(date) == str(d))
        # test iso 8601 units string
        d = datetime(1970, 1, 1, 1)
        t = self.cdftime_iso.date2num(d)
        assert_equal(numpy.around(t), 3600)
        # test fix for issue 75 (seconds hit 60 at end of month,
        # day goes out of range).
        t = 733499.0
        d = num2date(t, units='days since 0001-01-01 00:00:00')
        dateformat =  '%Y-%m-%d %H:%M:%S'
        assert_equal(d.strftime(dateformat), '2009-04-01 00:00:00')
        # test edge case of issue 75 for numerical problems
        for t in (733498.999, 733498.9999, 733498.99999, 733498.999999, 733498.9999999):
            d = num2date(t, units='days since 0001-01-01 00:00:00')
            t2 = date2num(d, units='days since 0001-01-01 00:00:00')
            assert(abs(t2 - t) &lt; 1e-5)  # values should be less than second

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

assert(np.abs((d-utc_date).total_seconds()) &lt; 1.e-3)
            # also test with negative values to cover 2nd code path
            d = num2date(-1, units, calendar="standard")
            assert(np.abs((d - \
                (utc_date-timedelta(hours=1))).total_seconds()) &lt; 1.e-3)

            n = date2num(utc_date, units, calendar="standard")
            # n should always be 0 as all units refer to the same point in time
            self.assertEqual(n, 0)
        # explicitly test 2nd code path for date2num
        units = "hours since 2000-01-01 22:30+04:00"
        n = date2num(utc_date, units, calendar="julian")
        # n should always be 0 as all units refer to the same point in time
        assert_almost_equal(n, 0)
        # cftime issue #49
        d = DateFromJulianDay(2450022.5, "standard")
        assert (d.year == 1995)
        assert (d.month == 11)
        assert (d.day == 1)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        # cftime issue #52
        d = DateFromJulianDay(1684958.5,calendar='gregorian')
        assert (d.year == -100)
        assert (d.month == 3)
        assert (d.day == 2)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        d = DateFromJulianDay(1684958.5,calendar='standard')
        assert (d.year == -100)

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

assert_equal(str(d), str(date))
        # test proleptic julian calendar.
        d = datetime(1858, 11, 17, 12)
        t = self.cdftime_jul.date2num(d)
        assert_almost_equal(t, 7528932.0)
        d1 = datetime(1582, 10, 4, 23)
        d2 = datetime(1582, 10, 15, 0)
        assert_almost_equal(
            self.cdftime_jul.date2num(d1) + 241.0, self.cdftime_jul.date2num(d2))
        date = self.cdftime_jul.num2date(t)
        self.assertTrue(str(d) == str(date))
        # test julian day from date, date from julian day
        d = datetime(1858, 11, 17)
        mjd = JulianDayFromDate(d)
        assert_almost_equal(mjd, 2400000.5)
        date = DateFromJulianDay(mjd)
        self.assertTrue(str(date) == str(d))
        # test iso 8601 units string
        d = datetime(1970, 1, 1, 1)
        t = self.cdftime_iso.date2num(d)
        assert_equal(np.around(t), 3600)
        # test fix for issue 75 (seconds hit 60 at end of month,
        # day goes out of range).
        t = 733499.0
        d = num2date(t, units='days since 0001-01-01 00:00:00')
        assert_equal(d.strftime(dateformat), '2009-04-01 00:00:00')
        # test edge case of issue 75 for numerical problems
        for t in (733498.999, 733498.9999, 733498.99999, 733498.999999, 733498.9999999):
            d = num2date(t, units='days since 0001-01-01 00:00:00')
            t2 = date2num(d, units='days since 0001-01-01 00:00:00')
            assert(abs(t2 - t) &lt; 1e-5)  # values should be less than second
        # Check equality testing

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

assert(np.abs((d-utc_date).total_seconds()) &lt; 1.e-3)
            # also test with negative values to cover 2nd code path
            d = num2date(-1, units, calendar="standard")
            assert(np.abs((d - \
                (utc_date-timedelta(hours=1))).total_seconds()) &lt; 1.e-3)

            n = date2num(utc_date, units, calendar="standard")
            # n should always be 0 as all units refer to the same point in time
            self.assertEqual(n, 0)
        # explicitly test 2nd code path for date2num
        units = "hours since 2000-01-01 22:30+04:00"
        n = date2num(utc_date, units, calendar="julian")
        # n should always be 0 as all units refer to the same point in time
        assert_almost_equal(n, 0)
        # cftime issue #49
        d = DateFromJulianDay(2450022.5, "standard")
        assert (d.year == 1995)
        assert (d.month == 11)
        assert (d.day == 1)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        # cftime issue #52
        d = DateFromJulianDay(1684958.5,calendar='gregorian')
        assert (d.year == -100)
        assert (d.month == 3)
        assert (d.day == 2)
        assert (d.hour == 0)
        assert (d.minute == 0)
        assert (d.second == 0)
        d = DateFromJulianDay(1684958.5,calendar='standard')
        assert (d.year == -100)

How to use the cftime.DateFromJulianDay 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.

cftime

Package Health Score

Popular cftime functions

Similar packages