| Safe Haskell | Safe |
|---|---|
| Language | Haskell2010 |
Data.Time.Calendar
Synopsis
- newtype Day = ModifiedJulianDay {}
- addDays :: Integer -> Day -> Day
- diffDays :: Day -> Day -> Integer
- class Ord p => DayPeriod p where
- periodFirstDay :: p -> Day
- periodLastDay :: p -> Day
- dayPeriod :: Day -> p
- periodAllDays :: DayPeriod p => p -> [Day]
- periodLength :: DayPeriod p => p -> Int
- periodFromDay :: DayPeriod p => Day -> (p, Int)
- periodToDay :: DayPeriod p => p -> Int -> Day
- periodToDayValid :: DayPeriod p => p -> Int -> Maybe Day
- data CalendarDiffDays = CalendarDiffDays {}
- calendarDay :: CalendarDiffDays
- calendarWeek :: CalendarDiffDays
- calendarMonth :: CalendarDiffDays
- calendarYear :: CalendarDiffDays
- scaleCalendarDiffDays :: Integer -> CalendarDiffDays -> CalendarDiffDays
- type Year = Integer
- pattern CommonEra :: Integer -> Year
- pattern BeforeCommonEra :: Integer -> Year
- type MonthOfYear = Int
- pattern January :: MonthOfYear
- pattern February :: MonthOfYear
- pattern March :: MonthOfYear
- pattern April :: MonthOfYear
- pattern May :: MonthOfYear
- pattern June :: MonthOfYear
- pattern July :: MonthOfYear
- pattern August :: MonthOfYear
- pattern September :: MonthOfYear
- pattern October :: MonthOfYear
- pattern November :: MonthOfYear
- pattern December :: MonthOfYear
- type DayOfMonth = Int
- toGregorian :: Day -> (Year, MonthOfYear, DayOfMonth)
- fromGregorian :: Year -> MonthOfYear -> DayOfMonth -> Day
- pattern YearMonthDay :: Year -> MonthOfYear -> DayOfMonth -> Day
- fromGregorianValid :: Year -> MonthOfYear -> DayOfMonth -> Maybe Day
- showGregorian :: Day -> String
- gregorianMonthLength :: Year -> MonthOfYear -> DayOfMonth
- 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 :: Year -> Bool
- data DayOfWeek
- dayOfWeek :: Day -> DayOfWeek
- dayOfWeekDiff :: DayOfWeek -> DayOfWeek -> Int
- firstDayOfWeekOnAfter :: DayOfWeek -> Day -> Day
Days
The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.
Constructors
| ModifiedJulianDay | |
Fields | |
Instances
| Data Day Source # | |
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 # | |
| Enum Day Source # | |
Defined in Data.Time.Calendar.Days | |
| Ix Day Source # | |
| Read Day Source # | |
| Show Day Source # | |
| NFData Day Source # | |
Defined in Data.Time.Calendar.Days | |
| Eq Day Source # | |
| Ord Day Source # | |
| DayPeriod Day Source # | |
| FormatTime Day Source # | |
Defined in Data.Time.Format.Format.Instances | |
| ISO8601 Day Source # |
|
Defined in Data.Time.Format.ISO8601 Methods | |
| ParseTime Day Source # | |
Defined in Data.Time.Format.Parse.Instances | |
DayPeriod
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
Calendar Duration
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.
Year, month and day
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 January :: MonthOfYear Source #
pattern February :: MonthOfYear Source #
pattern March :: MonthOfYear Source #
pattern April :: MonthOfYear Source #
pattern May :: MonthOfYear Source #
pattern June :: MonthOfYear Source #
pattern July :: MonthOfYear Source #
pattern August :: MonthOfYear Source #
pattern September :: MonthOfYear Source #
pattern October :: MonthOfYear Source #
pattern November :: 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.
Gregorian calendar
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?