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| Synopsis |
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| Days
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| newtype Day |
| The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.
| | Constructors | | ModifiedJulianDay | | | toModifiedJulianDay :: Integer | |
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|  Instances | |
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| addDays :: Integer -> Day -> Day |
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| diffDays :: Day -> Day -> Integer |
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| Gregorian calendar
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| toGregorian :: Day -> (Integer, Int, Int) |
| convert to proleptic Gregorian calendar. First element of result is year, second month number (1-12), third day (1-31).
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| fromGregorian :: Integer -> Int -> Int -> Day |
| convert from proleptic Gregorian calendar. First argument is year, second month number (1-12), third day (1-31).
Invalid values will be clipped to the correct range, month first, then day.
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| showGregorian :: Day -> String |
| show in ISO 8601 format (yyyy-mm-dd)
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| gregorianMonthLength :: Integer -> Int -> Int |
| The number of days in a given month according to the proleptic Gregorian calendar. First argument is year, second is month.
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| addGregorianMonthsClip :: Integer -> Day -> Day |
| Add months, with days past the last day of the month clipped to the last day.
For instance, 2005-01-30 + 1 month = 2005-02-28.
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| addGregorianMonthsRollOver :: Integer -> Day -> Day |
| Add months, with days past the last day of the month rolling over to the next month.
For instance, 2005-01-30 + 1 month = 2005-03-02.
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| addGregorianYearsClip :: Integer -> Day -> Day |
| Add years, matching month and day, with Feb 29th clipped to Feb 28th if necessary.
For instance, 2004-02-29 + 2 years = 2006-02-28.
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| addGregorianYearsRollOver :: Integer -> Day -> Day |
| Add years, matching month and day, with Feb 29th rolled over to Mar 1st if necessary.
For instance, 2004-02-29 + 2 years = 2006-03-01.
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| isLeapYear :: Integer -> Bool |
| Is this year a leap year according to the proleptic Gregorian calendar?
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| Produced by Haddock version 0.8 |
