Modulerebase-1.21.2Haskell2010

Rebase.Data.Time.Clock.System

1 type
6 values

Packagerebase-1.21.2
Exports7
LanguageHaskell2010
LicenceMIT
SourceSystemTime.hs

datadata SystemTime

SystemTime is time returned by system clock functions. Its semantics depends on the clock function, but the epoch is typically the beginning of 1970. Note that systemNanoseconds of 1E9 to 2E9-1 can be used to represent leap seconds.

Constructors

MkSystemTime
- systemSeconds :: !Int64
- systemNanoseconds :: !Word32

Instances5Eq, Data, Ord, Show, NFData

Eq SystemTimeDefined in time-1.12.2 · Data.Time.Clock.Internal.SystemTime
Data SystemTimeDefined in time-1.12.2 · Data.Time.Clock.Internal.SystemTime
Ord SystemTimeDefined in time-1.12.2 · Data.Time.Clock.Internal.SystemTime
Show SystemTimeDefined in time-1.12.2 · Data.Time.Clock.Internal.SystemTime
NFData SystemTimeDefined in time-1.12.2 · Data.Time.Clock.Internal.SystemTime

valuegetSystemTime :: IO SystemTime

Get the system time, epoch start of 1970 UTC, leap-seconds ignored. getSystemTime is typically much faster than getCurrentTime.

valuesystemEpochDay :: Day

The day of the epoch of SystemTime, 1970-01-01

valuesystemToTAITime :: SystemTime -> AbsoluteTime

Convert SystemTime to AbsoluteTime, matching zero SystemTime to midnight of systemEpochDay TAI.

valuesystemToUTCTime :: SystemTime -> UTCTime

Convert SystemTime to UTCTime, matching zero SystemTime to midnight of systemEpochDay UTC.

valuetruncateSystemTimeLeapSecond :: SystemTime -> SystemTime

Map leap-second values to the start of the following second. The resulting systemNanoseconds will always be in the range 0 to 1E9-1.

valueutcToSystemTime :: UTCTime -> SystemTime

Convert UTCTime to SystemTime, matching zero SystemTime to midnight of systemEpochDay UTC.