Safe Haskell	Safe
Language	Haskell2010

Data.Time.LocalTime

Contents

Time zones
Time of day
Local Time

Synopsis

Time zones

data TimeZone Source #

A TimeZone is a whole number of minutes offset from UTC, together with a name and a "just for summer" flag.

Constructors

TimeZone
Fields timeZoneMinutes :: Int The number of minutes offset from UTC. Positive means local time will be later in the day than UTC. timeZoneSummerOnly :: Bool Is this time zone just persisting for the summer? timeZoneName :: String The name of the zone, typically a three- or four-letter acronym.

Instances

Eq TimeZone Source #
Methods (==) :: TimeZone -> TimeZone -> Bool # (/=) :: TimeZone -> TimeZone -> Bool #
Data TimeZone Source #
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TimeZone -> c TimeZone # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TimeZone # toConstr :: TimeZone -> Constr # dataTypeOf :: TimeZone -> DataType # dataCast1 :: Typeable (* -> ) t => (forall d. Data d => c (t d)) -> Maybe (c TimeZone) # dataCast2 :: Typeable ( -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TimeZone) # gmapT :: (forall b. Data b => b -> b) -> TimeZone -> TimeZone # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TimeZone -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TimeZone -> r # gmapQ :: (forall d. Data d => d -> u) -> TimeZone -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> TimeZone -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone #
Ord TimeZone Source #
Methods compare :: TimeZone -> TimeZone -> Ordering # (<) :: TimeZone -> TimeZone -> Bool # (<=) :: TimeZone -> TimeZone -> Bool # (>) :: TimeZone -> TimeZone -> Bool # (>=) :: TimeZone -> TimeZone -> Bool # max :: TimeZone -> TimeZone -> TimeZone # min :: TimeZone -> TimeZone -> TimeZone #
Show TimeZone Source #
Methods showsPrec :: Int -> TimeZone -> ShowS # show :: TimeZone -> String # showList :: [TimeZone] -> ShowS #
NFData TimeZone Source #
Methods rnf :: TimeZone -> () #
ParseTime TimeZone Source #
Methods buildTime :: TimeLocale -> [(Char, String)] -> Maybe TimeZone Source #
FormatTime TimeZone Source #
Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> TimeZone -> String) Source #

timeZoneOffsetString :: TimeZone -> String Source #

Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime)

timeZoneOffsetString' :: NumericPadOption -> TimeZone -> String Source #

Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime), with arbitrary padding

minutesToTimeZone :: Int -> TimeZone Source #

Create a nameless non-summer timezone for this number of minutes

hoursToTimeZone :: Int -> TimeZone Source #

Create a nameless non-summer timezone for this number of hours

utc :: TimeZone Source #

The UTC time zone

getTimeZone :: UTCTime -> IO TimeZone Source #

Get the local time-zone for a given time (varying as per summertime adjustments)

getCurrentTimeZone :: IO TimeZone Source #

Get the current time-zone

Time of day

data TimeOfDay Source #

Time of day as represented in hour, minute and second (with picoseconds), typically used to express local time of day.

Constructors

TimeOfDay
Fields todHour :: Int range 0 - 23 todMin :: Int range 0 - 59 todSec :: Pico Note that 0 <= todSec < 61, accomodating leap seconds. Any local minute may have a leap second, since leap seconds happen in all zones simultaneously

Instances

Eq TimeOfDay Source #
Methods (==) :: TimeOfDay -> TimeOfDay -> Bool # (/=) :: TimeOfDay -> TimeOfDay -> Bool #
Data TimeOfDay Source #
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TimeOfDay -> c TimeOfDay # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TimeOfDay # toConstr :: TimeOfDay -> Constr # dataTypeOf :: TimeOfDay -> DataType # dataCast1 :: Typeable (* -> ) t => (forall d. Data d => c (t d)) -> Maybe (c TimeOfDay) # dataCast2 :: Typeable ( -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TimeOfDay) # gmapT :: (forall b. Data b => b -> b) -> TimeOfDay -> TimeOfDay # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TimeOfDay -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TimeOfDay -> r # gmapQ :: (forall d. Data d => d -> u) -> TimeOfDay -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> TimeOfDay -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay #
Ord TimeOfDay Source #
Methods compare :: TimeOfDay -> TimeOfDay -> Ordering # (<) :: TimeOfDay -> TimeOfDay -> Bool # (<=) :: TimeOfDay -> TimeOfDay -> Bool # (>) :: TimeOfDay -> TimeOfDay -> Bool # (>=) :: TimeOfDay -> TimeOfDay -> Bool # max :: TimeOfDay -> TimeOfDay -> TimeOfDay # min :: TimeOfDay -> TimeOfDay -> TimeOfDay #
Show TimeOfDay Source #
Methods showsPrec :: Int -> TimeOfDay -> ShowS # show :: TimeOfDay -> String # showList :: [TimeOfDay] -> ShowS #
NFData TimeOfDay Source #
Methods rnf :: TimeOfDay -> () #
ParseTime TimeOfDay Source #
Methods buildTime :: TimeLocale -> [(Char, String)] -> Maybe TimeOfDay Source #
FormatTime TimeOfDay Source #
Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> TimeOfDay -> String) Source #

midnight :: TimeOfDay Source #

Hour zero

midday :: TimeOfDay Source #

Hour twelve

makeTimeOfDayValid :: Int -> Int -> Pico -> Maybe TimeOfDay Source #

utcToLocalTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source #

Convert a ToD in UTC to a ToD in some timezone, together with a day adjustment.

localToUTCTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source #

Convert a ToD in some timezone to a ToD in UTC, together with a day adjustment.

timeToTimeOfDay :: DiffTime -> TimeOfDay Source #

Get a TimeOfDay given a time since midnight. Time more than 24h will be converted to leap-seconds.

timeOfDayToTime :: TimeOfDay -> DiffTime Source #

Find out how much time since midnight a given TimeOfDay is.

dayFractionToTimeOfDay :: Rational -> TimeOfDay Source #

Get a TimeOfDay given the fraction of a day since midnight.

timeOfDayToDayFraction :: TimeOfDay -> Rational Source #

Get the fraction of a day since midnight given a TimeOfDay.

Local Time

data LocalTime Source #

A simple day and time aggregate, where the day is of the specified parameter, and the time is a TimeOfDay. Conversion of this (as local civil time) to UTC depends on the time zone. Conversion of this (as local mean time) to UT1 depends on the longitude.

Constructors

LocalTime
Fields localDay :: Day localTimeOfDay :: TimeOfDay

Instances

Eq LocalTime Source #
Methods (==) :: LocalTime -> LocalTime -> Bool # (/=) :: LocalTime -> LocalTime -> Bool #
Data LocalTime Source #
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LocalTime -> c LocalTime # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LocalTime # toConstr :: LocalTime -> Constr # dataTypeOf :: LocalTime -> DataType # dataCast1 :: Typeable (* -> ) t => (forall d. Data d => c (t d)) -> Maybe (c LocalTime) # dataCast2 :: Typeable ( -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LocalTime) # gmapT :: (forall b. Data b => b -> b) -> LocalTime -> LocalTime # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LocalTime -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LocalTime -> r # gmapQ :: (forall d. Data d => d -> u) -> LocalTime -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> LocalTime -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime #
Ord LocalTime Source #
Methods compare :: LocalTime -> LocalTime -> Ordering # (<) :: LocalTime -> LocalTime -> Bool # (<=) :: LocalTime -> LocalTime -> Bool # (>) :: LocalTime -> LocalTime -> Bool # (>=) :: LocalTime -> LocalTime -> Bool # max :: LocalTime -> LocalTime -> LocalTime # min :: LocalTime -> LocalTime -> LocalTime #
Show LocalTime Source #
Methods showsPrec :: Int -> LocalTime -> ShowS # show :: LocalTime -> String # showList :: [LocalTime] -> ShowS #
NFData LocalTime Source #
Methods rnf :: LocalTime -> () #
ParseTime LocalTime Source #
Methods buildTime :: TimeLocale -> [(Char, String)] -> Maybe LocalTime Source #
FormatTime LocalTime Source #
Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> LocalTime -> String) Source #

utcToLocalTime :: TimeZone -> UTCTime -> LocalTime Source #

show a UTC time in a given time zone as a LocalTime

localTimeToUTC :: TimeZone -> LocalTime -> UTCTime Source #

find out what UTC time a given LocalTime in a given time zone is

ut1ToLocalTime :: Rational -> UniversalTime -> LocalTime Source #

1st arg is observation meridian in degrees, positive is East

localTimeToUT1 :: Rational -> LocalTime -> UniversalTime Source #

1st arg is observation meridian in degrees, positive is East

data ZonedTime Source #

A local time together with a TimeZone.

Constructors

ZonedTime
Fields zonedTimeToLocalTime :: LocalTime zonedTimeZone :: TimeZone

Instances

Data ZonedTime Source #
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ZonedTime -> c ZonedTime # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c ZonedTime # toConstr :: ZonedTime -> Constr # dataTypeOf :: ZonedTime -> DataType # dataCast1 :: Typeable (* -> ) t => (forall d. Data d => c (t d)) -> Maybe (c ZonedTime) # dataCast2 :: Typeable ( -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c ZonedTime) # gmapT :: (forall b. Data b => b -> b) -> ZonedTime -> ZonedTime # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ZonedTime -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ZonedTime -> r # gmapQ :: (forall d. Data d => d -> u) -> ZonedTime -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> ZonedTime -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime #
Show ZonedTime Source #
Methods showsPrec :: Int -> ZonedTime -> ShowS # show :: ZonedTime -> String # showList :: [ZonedTime] -> ShowS #
NFData ZonedTime Source #
Methods rnf :: ZonedTime -> () #
ParseTime ZonedTime Source #
Methods buildTime :: TimeLocale -> [(Char, String)] -> Maybe ZonedTime Source #
FormatTime ZonedTime Source #
Methods formatCharacter :: Char -> Maybe (TimeLocale -> Maybe NumericPadOption -> ZonedTime -> String) Source #

utcToZonedTime :: TimeZone -> UTCTime -> ZonedTime Source #

zonedTimeToUTC :: ZonedTime -> UTCTime Source #

getZonedTime :: IO ZonedTime Source #

utcToLocalZonedTime :: UTCTime -> IO ZonedTime Source #