Safe Haskell | Trustworthy |
---|---|
Language | Haskell2010 |
Data.Time.Clock.Compat
Synopsis
- newtype UniversalTime = ModJulianDate {}
- data DiffTime
- secondsToDiffTime :: Integer -> DiffTime
- picosecondsToDiffTime :: Integer -> DiffTime
- diffTimeToPicoseconds :: DiffTime -> Integer
- data UTCTime = UTCTime {
- utctDay :: Day
- utctDayTime :: DiffTime
- data NominalDiffTime
- secondsToNominalDiffTime :: Pico -> NominalDiffTime
- nominalDiffTimeToSeconds :: NominalDiffTime -> Pico
- nominalDay :: NominalDiffTime
- addUTCTime :: NominalDiffTime -> UTCTime -> UTCTime
- diffUTCTime :: UTCTime -> UTCTime -> NominalDiffTime
- getCurrentTime :: IO UTCTime
- getTime_resolution :: DiffTime
- type Year = Integer
- type MonthOfYear = Int
- type DayOfMonth = Int
Universal Time
Time as measured by the Earth.
newtype UniversalTime Source #
The Modified Julian Date is the day with the fraction of the day, measured from UT midnight. It's used to represent UT1, which is time as measured by the earth's rotation, adjusted for various wobbles.
Constructors
ModJulianDate | |
Fields |
Instances
Absolute intervals, DiffTime
This is a length of time, as measured by a clock. Conversion functions will treat it as seconds. It has a precision of 10^-12 s.
Instances
secondsToDiffTime :: Integer -> DiffTime Source #
Create a DiffTime
which represents an integral number of seconds.
picosecondsToDiffTime :: Integer -> DiffTime Source #
Create a DiffTime
from a number of picoseconds.
UTCTime
This is the simplest representation of UTC. It consists of the day number, and a time offset from midnight. Note that if a day has a leap second added to it, it will have 86401 seconds.
Constructors
UTCTime | |
Fields
|
Instances
Eq UTCTime | |
Data UTCTime | |
Defined in Data.Time.Clock.Internal.UTCTime Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UTCTime -> c UTCTime Source # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c UTCTime Source # toConstr :: UTCTime -> Constr Source # dataTypeOf :: UTCTime -> DataType Source # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c UTCTime) Source # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c UTCTime) Source # gmapT :: (forall b. Data b => b -> b) -> UTCTime -> UTCTime Source # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UTCTime -> r Source # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UTCTime -> r Source # gmapQ :: (forall d. Data d => d -> u) -> UTCTime -> [u] Source # gmapQi :: Int -> (forall d. Data d => d -> u) -> UTCTime -> u Source # gmapM :: Monad m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime Source # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime Source # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime Source # | |
Ord UTCTime | |
Defined in Data.Time.Clock.Internal.UTCTime | |
NFData UTCTime | |
Defined in Data.Time.Clock.Internal.UTCTime | |
Hashable UTCTime Source # | |
ISO8601 UTCTime |
|
Defined in Data.Time.Format.ISO8601 Methods |
NominalDiffTime
data NominalDiffTime Source #
This is a length of time, as measured by UTC. It has a precision of 10^-12 s.
Conversion functions will treat it as seconds.
For example, (0.010 :: NominalDiffTime)
corresponds to 10 milliseconds.
It ignores leap-seconds, so it's not necessarily a fixed amount of clock time. For instance, 23:00 UTC + 2 hours of NominalDiffTime = 01:00 UTC (+ 1 day), regardless of whether a leap-second intervened.
Instances
secondsToNominalDiffTime :: Pico -> NominalDiffTime Source #
Create a NominalDiffTime
from a number of seconds.
Since: time-1.9.1
nominalDiffTimeToSeconds :: NominalDiffTime -> Pico Source #
Get the seconds in a NominalDiffTime
.
Since: time-1.9.1
nominalDay :: NominalDiffTime Source #
One day in NominalDiffTime
.
UTC differences
addUTCTime :: NominalDiffTime -> UTCTime -> UTCTime Source #
addUTCTime a b = a + b
diffUTCTime :: UTCTime -> UTCTime -> NominalDiffTime Source #
diffUTCTime a b = a - b
Current time
getTime_resolution :: DiffTime Source #
The resolution of getSystemTime
, getCurrentTime
, getPOSIXTime
Type aliases
type MonthOfYear = Int Source #
Month of year, in range 1 (January) to 12 (December).
type DayOfMonth = Int Source #
Day of month, in range 1 to 31.