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/Haskell 8

Data.Time.Calendar

Safe Haskell Safe
Language Haskell2010

Days

newtype Day Source

The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.

Constructors

ModifiedJulianDay

Fields

Instances
Instances details
Enum Day
Instance details

Defined in Data.Time.Calendar.Days

Methods

succ :: Day -> Day Source

pred :: Day -> Day Source

toEnum :: Int -> Day Source

fromEnum :: Day -> Int Source

enumFrom :: Day -> [Day] Source

enumFromThen :: Day -> Day -> [Day] Source

enumFromTo :: Day -> Day -> [Day] Source

enumFromThenTo :: Day -> Day -> Day -> [Day] Source

Eq Day
Instance details

Defined in Data.Time.Calendar.Days

Methods

(==) :: Day -> Day -> Bool

(/=) :: Day -> Day -> Bool

Data Day
Instance details

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 Source

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Day Source

toConstr :: Day -> Constr Source

dataTypeOf :: Day -> DataType Source

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Day) Source

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Day) Source

gmapT :: (forall b. Data b => b -> b) -> Day -> Day Source

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r Source

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r Source

gmapQ :: (forall d. Data d => d -> u) -> Day -> [u] Source

gmapQi :: Int -> (forall d. Data d => d -> u) -> Day -> u Source

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Day -> m Day Source

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day Source

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day Source

Ord Day
Instance details

Defined in Data.Time.Calendar.Days

Methods

compare :: Day -> Day -> Ordering

(<) :: Day -> Day -> Bool

(<=) :: Day -> Day -> Bool

(>) :: Day -> Day -> Bool

(>=) :: Day -> Day -> Bool

max :: Day -> Day -> Day

min :: Day -> Day -> Day

Read Day
Instance details

Defined in Data.Time.Format.Parse

Methods

readsPrec :: Int -> ReadS Day Source

readList :: ReadS [Day] Source

readPrec :: ReadPrec Day Source

readListPrec :: ReadPrec [Day] Source

Show Day
Instance details

Defined in Data.Time.Calendar.Gregorian

Methods

showsPrec :: Int -> Day -> ShowS Source

show :: Day -> String Source

showList :: [Day] -> ShowS Source

Ix Day
Instance details

Defined in Data.Time.Calendar.Days

Methods

range :: (Day, Day) -> [Day] Source

index :: (Day, Day) -> Day -> Int Source

unsafeIndex :: (Day, Day) -> Day -> Int Source

inRange :: (Day, Day) -> Day -> Bool Source

rangeSize :: (Day, Day) -> Int Source

unsafeRangeSize :: (Day, Day) -> Int Source

NFData Day
Instance details

Defined in Data.Time.Calendar.Days

Methods

rnf :: Day -> () Source

ParseTime Day
Instance details

Defined in Data.Time.Format.Parse.Instances

Methods

substituteTimeSpecifier :: proxy Day -> TimeLocale -> Char -> Maybe String Source

parseTimeSpecifier :: proxy Day -> TimeLocale -> Maybe ParseNumericPadding -> Char -> ReadP String Source

buildTime :: TimeLocale -> [(Char, String)] -> Maybe Day Source

FormatTime Day
Instance details

Defined in Data.Time.Format.Format.Instances

Methods

formatCharacter :: Bool -> Char -> Maybe (FormatOptions -> Day -> String) Source

ISO8601 Day

yyyy-mm-dd (ISO 8601:2004(E) sec. 4.1.2.2 extended format)
Instance details

Defined in Data.Time.Format.ISO8601

Methods

iso8601Format :: Format Day Source

addDays :: Integer -> Day -> Day Source

diffDays :: Day -> Day -> Integer Source

Calendar Duration

data CalendarDiffDays Source

Constructors

CalendarDiffDays

Fields

Instances
Instances details
Eq CalendarDiffDays
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

(==) :: CalendarDiffDays -> CalendarDiffDays -> Bool

(/=) :: CalendarDiffDays -> CalendarDiffDays -> Bool

Data CalendarDiffDays

Since: time-1.9.2
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CalendarDiffDays -> c CalendarDiffDays Source

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CalendarDiffDays Source

toConstr :: CalendarDiffDays -> Constr Source

dataTypeOf :: CalendarDiffDays -> DataType Source

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CalendarDiffDays) Source

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CalendarDiffDays) Source

gmapT :: (forall b. Data b => b -> b) -> CalendarDiffDays -> CalendarDiffDays Source

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffDays -> r Source

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffDays -> r Source

gmapQ :: (forall d. Data d => d -> u) -> CalendarDiffDays -> [u] Source

gmapQi :: Int -> (forall d. Data d => d -> u) -> CalendarDiffDays -> u Source

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays Source

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays Source

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays Source

Show CalendarDiffDays
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

showsPrec :: Int -> CalendarDiffDays -> ShowS Source

show :: CalendarDiffDays -> String Source

showList :: [CalendarDiffDays] -> ShowS Source

Semigroup CalendarDiffDays

Additive
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

(<>) :: CalendarDiffDays -> CalendarDiffDays -> CalendarDiffDays Source

sconcat :: NonEmpty CalendarDiffDays -> CalendarDiffDays Source

stimes :: Integral b => b -> CalendarDiffDays -> CalendarDiffDays Source

Monoid CalendarDiffDays

Additive
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

mempty :: CalendarDiffDays Source

mappend :: CalendarDiffDays -> CalendarDiffDays -> CalendarDiffDays Source

mconcat :: [CalendarDiffDays] -> CalendarDiffDays Source

ParseTime CalendarDiffDays
Instance details

Defined in Data.Time.Format.Parse.Instances

Methods

substituteTimeSpecifier :: proxy CalendarDiffDays -> TimeLocale -> Char -> Maybe String Source

parseTimeSpecifier :: proxy CalendarDiffDays -> TimeLocale -> Maybe ParseNumericPadding -> Char -> ReadP String Source

buildTime :: TimeLocale -> [(Char, String)] -> Maybe CalendarDiffDays Source

FormatTime CalendarDiffDays
Instance details

Defined in Data.Time.Format.Format.Instances

Methods

formatCharacter :: Bool -> Char -> Maybe (FormatOptions -> CalendarDiffDays -> String) Source

ISO8601 CalendarDiffDays

PyYmMdD (ISO 8601:2004(E) sec. 4.4.3.2)
Instance details

Defined in Data.Time.Format.ISO8601

Methods

iso8601Format :: Format CalendarDiffDays Source

calendarDay :: CalendarDiffDays Source

calendarWeek :: CalendarDiffDays Source

calendarMonth :: CalendarDiffDays Source

calendarYear :: CalendarDiffDays Source

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) Source

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 Source

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 Source

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 Source

Show in ISO 8601 format (yyyy-mm-dd)

gregorianMonthLength :: Integer -> Int -> Int Source

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 Source

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 Source

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 Source

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 Source

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 Source

Is this year a leap year according to the proleptic Gregorian calendar?

Week

data DayOfWeek Source

Constructors

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Instances
Instances details
Enum DayOfWeek

"Circular", so for example [Tuesday ..] gives an endless sequence. Also: fromEnum gives [1 .. 7] for [Monday .. Sunday], and toEnum performs mod 7 to give a cycle of days.
Instance details

Defined in Data.Time.Calendar.Week

Methods

succ :: DayOfWeek -> DayOfWeek Source

pred :: DayOfWeek -> DayOfWeek Source

toEnum :: Int -> DayOfWeek Source

fromEnum :: DayOfWeek -> Int Source

enumFrom :: DayOfWeek -> [DayOfWeek] Source

enumFromThen :: DayOfWeek -> DayOfWeek -> [DayOfWeek] Source

enumFromTo :: DayOfWeek -> DayOfWeek -> [DayOfWeek] Source

enumFromThenTo :: DayOfWeek -> DayOfWeek -> DayOfWeek -> [DayOfWeek] Source

Eq DayOfWeek
Instance details

Defined in Data.Time.Calendar.Week

Methods

(==) :: DayOfWeek -> DayOfWeek -> Bool

(/=) :: DayOfWeek -> DayOfWeek -> Bool

Read DayOfWeek
Instance details

Defined in Data.Time.Calendar.Week

Methods

readsPrec :: Int -> ReadS DayOfWeek Source

readList :: ReadS [DayOfWeek] Source

readPrec :: ReadPrec DayOfWeek Source

readListPrec :: ReadPrec [DayOfWeek] Source

Show DayOfWeek
Instance details

Defined in Data.Time.Calendar.Week

Methods

showsPrec :: Int -> DayOfWeek -> ShowS Source

show :: DayOfWeek -> String Source

showList :: [DayOfWeek] -> ShowS Source

FormatTime DayOfWeek
Instance details

Defined in Data.Time.Format.Format.Instances

Methods

formatCharacter :: Bool -> Char -> Maybe (FormatOptions -> DayOfWeek -> String) Source

dayOfWeek :: Day -> DayOfWeek Source

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Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.8.3/docs/html/libraries/time-1.9.3/Data-Time-Calendar.html