| Safe Haskell | Trustworthy |
|---|---|
| Language | Haskell2010 |
Data.Time.Calendar.Compat
Synopsis
- newtype Day = ModifiedJulianDay {}
- addDays :: Integer -> Day -> Day
- diffDays :: Day -> Day -> Integer
- data CalendarDiffDays = CalendarDiffDays {}
- calendarDay :: CalendarDiffDays
- calendarWeek :: CalendarDiffDays
- calendarMonth :: CalendarDiffDays
- calendarYear :: CalendarDiffDays
- scaleCalendarDiffDays :: Integer -> CalendarDiffDays -> CalendarDiffDays
- toGregorian :: Day -> (Integer, Int, Int)
- fromGregorian :: Integer -> Int -> Int -> Day
- fromGregorianValid :: Integer -> Int -> Int -> Maybe Day
- showGregorian :: Day -> String
- gregorianMonthLength :: Integer -> Int -> Int
- addGregorianMonthsClip :: Integer -> Day -> Day
- addGregorianMonthsRollOver :: Integer -> Day -> Day
- addGregorianYearsClip :: Integer -> Day -> Day
- addGregorianYearsRollOver :: Integer -> Day -> Day
- addGregorianDurationClip :: CalendarDiffDays -> Day -> Day
- addGregorianDurationRollOver :: CalendarDiffDays -> Day -> Day
- diffGregorianDurationClip :: Day -> Day -> CalendarDiffDays
- diffGregorianDurationRollOver :: Day -> Day -> CalendarDiffDays
- isLeapYear :: Integer -> Bool
- data DayOfWeek
- dayOfWeek :: Day -> DayOfWeek
Days
The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.
Constructors
| ModifiedJulianDay | |
Fields | |
Instances
| Enum Day | |
| Eq Day | |
| Data Day | |
Defined in Data.Time.Calendar.Days Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Day -> c Day # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Day # dataTypeOf :: Day -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Day) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Day) # gmapT :: (forall b. Data b => b -> b) -> Day -> Day # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r # gmapQ :: (forall d. Data d => d -> u) -> Day -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Day -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Day -> m Day # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day # | |
| Ord Day | |
| Ix Day | |
| NFData Day | |
Defined in Data.Time.Calendar.Days | |
| FormatTime Day | |
Defined in Data.Time.Format Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> Maybe Int -> Day -> String) # | |
| ParseTime Day | |
Defined in Data.Time.Format.Parse | |
| ISO8601 Day Source # |
|
Defined in Data.Time.Format.ISO8601.Compat Methods | |
CalendarDiffTime
data CalendarDiffDays Source #
Constructors
| CalendarDiffDays | |
Instances
scaleCalendarDiffDays :: Integer -> CalendarDiffDays -> CalendarDiffDays Source #
Scale by a factor. Note that scaleCalendarDiffDays (-1) will not perfectly invert a duration, due to variable month lengths.
Gregorian calendar
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).
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.
fromGregorianValid :: Integer -> Int -> Int -> Maybe Day #
Convert from proleptic Gregorian calendar. First argument is year, second month number (1-12), third day (1-31). Invalid values will return Nothing
showGregorian :: Day -> String #
Show in ISO 8601 format (yyyy-mm-dd)
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.
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.
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.
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.
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.
addGregorianDurationClip :: CalendarDiffDays -> Day -> Day Source #
Add months (clipped to last day), then add days
addGregorianDurationRollOver :: CalendarDiffDays -> Day -> Day Source #
Add months (rolling over to next month), then add days
diffGregorianDurationClip :: Day -> Day -> CalendarDiffDays Source #
Calendrical difference, with as many whole months as possible
diffGregorianDurationRollOver :: Day -> Day -> CalendarDiffDays Source #
Calendrical difference, with as many whole months as possible.
Same as diffGregorianDurationClip for positive durations.
isLeapYear :: Integer -> Bool #
Is this year a leap year according to the proleptic Gregorian calendar?
Week
Instances
| Enum DayOfWeek Source # | "Circular", so for example |
Defined in Data.Time.Calendar.Compat Methods succ :: DayOfWeek -> DayOfWeek # pred :: DayOfWeek -> DayOfWeek # fromEnum :: DayOfWeek -> Int # enumFrom :: DayOfWeek -> [DayOfWeek] # enumFromThen :: DayOfWeek -> DayOfWeek -> [DayOfWeek] # enumFromTo :: DayOfWeek -> DayOfWeek -> [DayOfWeek] # enumFromThenTo :: DayOfWeek -> DayOfWeek -> DayOfWeek -> [DayOfWeek] # | |
| Eq DayOfWeek Source # | |
| Read DayOfWeek Source # | |
| Show DayOfWeek Source # | |
| FormatTime DayOfWeek Source # | |
Defined in Data.Time.Calendar.Compat Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> Maybe Int -> DayOfWeek -> String) # | |