time-1.12.2: A time library
Safe HaskellSafe
LanguageHaskell2010

Data.Time.Calendar

Synopsis

Documentation

newtype Day Source #

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

Instances

Instances details
NFData Day Source # 
Instance details

Defined in Data.Time.Calendar.Days

Methods

rnf :: Day -> () Source #

Data Day Source # 
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 #

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

toConstr :: Day -> Constr #

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 :: forall r r'. (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 #

Enum Day Source # 
Instance details

Defined in Data.Time.Calendar.Days

Methods

succ :: Day -> Day #

pred :: Day -> Day #

toEnum :: Int -> Day #

fromEnum :: Day -> Int #

enumFrom :: Day -> [Day] #

enumFromThen :: Day -> Day -> [Day] #

enumFromTo :: Day -> Day -> [Day] #

enumFromThenTo :: Day -> Day -> Day -> [Day] #

Ix Day Source # 
Instance details

Defined in Data.Time.Calendar.Days

Methods

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

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

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

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

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

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

Read Day Source # 
Instance details

Defined in Data.Time.Format.Parse

Show Day Source # 
Instance details

Defined in Data.Time.Calendar.Gregorian

Methods

showsPrec :: Int -> Day -> ShowS #

show :: Day -> String #

showList :: [Day] -> ShowS #

Eq Day Source # 
Instance details

Defined in Data.Time.Calendar.Days

Methods

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

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

Ord Day Source # 
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 #

DayPeriod Day Source # 
Instance details

Defined in Data.Time.Calendar.Days

FormatTime Day Source # 
Instance details

Defined in Data.Time.Format.Format.Instances

ISO8601 Day Source #

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

Instance details

Defined in Data.Time.Format.ISO8601

ParseTime Day Source # 
Instance details

Defined in Data.Time.Format.Parse.Instances

class Ord p => DayPeriod p where Source #

The class of types which can be represented as a period of days.

Since: time-1.12.1

Methods

periodFirstDay :: p -> Day Source #

Returns the first Day in a period of days.

periodLastDay :: p -> Day Source #

Returns the last Day in a period of days.

dayPeriod :: Day -> p Source #

Get the period this day is in.

periodAllDays :: DayPeriod p => p -> [Day] Source #

A list of all the days in this period.

Since: time-1.12.1

periodLength :: DayPeriod p => p -> Int Source #

The number of days in this period.

Since: time-1.12.1

periodFromDay :: DayPeriod p => Day -> (p, Int) Source #

Get the period this day is in, with the 1-based day number within the period.

periodFromDay (periodFirstDay p) = (p,1)

Since: time-1.12.1

periodToDay :: DayPeriod p => p -> Int -> Day Source #

Inverse of periodFromDay.

Since: time-1.12.1

periodToDayValid :: DayPeriod p => p -> Int -> Maybe Day Source #

Validating inverse of periodFromDay.

Since: time-1.12.1

data CalendarDiffDays Source #

Constructors

CalendarDiffDays 

Instances

Instances details
NFData CalendarDiffDays Source # 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

rnf :: CalendarDiffDays -> () Source #

Monoid CalendarDiffDays Source #

Additive

Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Semigroup CalendarDiffDays Source #

Additive

Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Data CalendarDiffDays Source #

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 #

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

toConstr :: CalendarDiffDays -> Constr #

dataTypeOf :: CalendarDiffDays -> DataType #

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

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

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

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

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

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

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

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

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

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

Show CalendarDiffDays Source # 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Eq CalendarDiffDays Source # 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

FormatTime CalendarDiffDays Source # 
Instance details

Defined in Data.Time.Format.Format.Instances

ISO8601 CalendarDiffDays Source #

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

Instance details

Defined in Data.Time.Format.ISO8601

ParseTime CalendarDiffDays Source # 
Instance details

Defined in Data.Time.Format.Parse.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.

type Year = Integer Source #

Year of Common Era (when positive).

pattern CommonEra :: Integer -> Year Source #

Also known as Anno Domini.

pattern BeforeCommonEra :: Integer -> Year Source #

Also known as Before Christ. Note that Year 1 = 1 CE, and the previous Year 0 = 1 BCE. CommonEra and BeforeCommonEra form a COMPLETE set.

type MonthOfYear = Int Source #

Month of year, in range 1 (January) to 12 (December).

pattern May :: MonthOfYear Source #

pattern December :: MonthOfYear Source #

The twelve MonthOfYear patterns form a COMPLETE set.

type DayOfMonth = Int Source #

Day of month, in range 1 to 31.

toGregorian :: Day -> (Year, MonthOfYear, DayOfMonth) Source #

Convert to proleptic Gregorian calendar.

fromGregorian :: Year -> MonthOfYear -> DayOfMonth -> Day Source #

Convert from proleptic Gregorian calendar. Invalid values will be clipped to the correct range, month first, then day.

pattern YearMonthDay :: Year -> MonthOfYear -> DayOfMonth -> Day Source #

Bidirectional abstract constructor for the proleptic Gregorian calendar. Invalid values will be clipped to the correct range, month first, then day.

fromGregorianValid :: Year -> MonthOfYear -> DayOfMonth -> Maybe Day Source #

Convert from proleptic Gregorian calendar. Invalid values will return Nothing

showGregorian :: Day -> String Source #

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

gregorianMonthLength :: Year -> MonthOfYear -> DayOfMonth Source #

The number of days in a given month according to the proleptic Gregorian calendar.

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 :: Year -> Bool Source #

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

data DayOfWeek Source #

Instances

Instances details
NFData DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Methods

rnf :: DayOfWeek -> () Source #

Data DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> DayOfWeek -> c DayOfWeek #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c DayOfWeek #

toConstr :: DayOfWeek -> Constr #

dataTypeOf :: DayOfWeek -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c DayOfWeek) #

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

gmapT :: (forall b. Data b => b -> b) -> DayOfWeek -> DayOfWeek #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> DayOfWeek -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> DayOfWeek -> r #

gmapQ :: (forall d. Data d => d -> u) -> DayOfWeek -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> DayOfWeek -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

Enum DayOfWeek Source #

"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

Ix DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Read DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Show DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Eq DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

Ord DayOfWeek Source # 
Instance details

Defined in Data.Time.Calendar.Week

FormatTime DayOfWeek Source # 
Instance details

Defined in Data.Time.Format.Format.Instances

dayOfWeekDiff :: DayOfWeek -> DayOfWeek -> Int Source #

dayOfWeekDiff a b = a - b in range 0 to 6. The number of days from b to the next a.

firstDayOfWeekOnAfter :: DayOfWeek -> Day -> Day Source #

The first day-of-week on or after some day

weekAllDays :: DayOfWeek -> Day -> [Day] Source #

Returns a week containing the given Day where the first day is the DayOfWeek specified.

Examples:

>>> weekAllDays Sunday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 20 .. YearMonthDay 2022 2 26]
>>> weekAllDays Monday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 21 .. YearMonthDay 2022 2 27]
>>> weekAllDays Tuesday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 15 .. YearMonthDay 2022 2 21]

Since: time-1.12.2

weekFirstDay :: DayOfWeek -> Day -> Day Source #

Returns the first day of a week containing the given Day.

Examples:

>>> weekFirstDay Sunday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 20
>>> weekFirstDay Monday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 21
>>> weekFirstDay Tuesday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 15

Since: time-1.12.2

weekLastDay :: DayOfWeek -> Day -> Day Source #

Returns the last day of a week containing the given Day.

Examples:

>>> weekLastDay Sunday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 26
>>> weekLastDay Monday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 27
>>> weekLastDay Tuesday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 21

Since: time-1.12.2