time-1.8.0.2: A time library

Safe HaskellSafe
LanguageHaskell2010

Data.Time.Clock.TAI

Contents

Description

TAI and leap-second maps for converting to UTC: most people won't need this module.

Synopsis

Documentation

data AbsoluteTime #

AbsoluteTime is TAI, time as measured by a clock.

Instances

Eq AbsoluteTime # 
Data AbsoluteTime # 

Methods

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

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

toConstr :: AbsoluteTime -> Constr Source #

dataTypeOf :: AbsoluteTime -> DataType Source #

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

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

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

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

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

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

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

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

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

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

Ord AbsoluteTime # 
NFData AbsoluteTime # 

Methods

rnf :: AbsoluteTime -> () Source #

taiEpoch :: AbsoluteTime #

The epoch of TAI, which is 1858-11-17 00:00:00 TAI.

addAbsoluteTime :: DiffTime -> AbsoluteTime -> AbsoluteTime #

addAbsoluteTime a b = a + b

diffAbsoluteTime :: AbsoluteTime -> AbsoluteTime -> DiffTime #

diffAbsoluteTime a b = a - b

taiNominalDayStart :: Day -> AbsoluteTime #

type LeapSecondMap = Day -> Maybe Int #

TAI - UTC during this day. No table is provided, as any program compiled with it would become out of date in six months.

utcDayLength :: LeapSecondMap -> Day -> Maybe DiffTime #

utcToTAITime :: LeapSecondMap -> UTCTime -> Maybe AbsoluteTime #

taiToUTCTime :: LeapSecondMap -> AbsoluteTime -> Maybe UTCTime #

taiClock :: Maybe (DiffTime, IO AbsoluteTime) #

TAI clock, if it exists. Note that it is unlikely to be set correctly, without due care and attention.

Orphan instances