Data.Time.Clock.TAI
Description
TAI and leap-second tables for converting to UTC: most people won't need this module.
- data AbsoluteTime
- taiEpoch :: AbsoluteTime
- addAbsoluteTime :: DiffTime -> AbsoluteTime -> AbsoluteTime
- diffAbsoluteTime :: AbsoluteTime -> AbsoluteTime -> DiffTime
- type LeapSecondTable = Day -> Integer
- utcDayLength :: LeapSecondTable -> Day -> DiffTime
- utcToTAITime :: LeapSecondTable -> UTCTime -> AbsoluteTime
- taiToUTCTime :: LeapSecondTable -> AbsoluteTime -> UTCTime
- parseTAIUTCDATFile :: String -> LeapSecondTable
Documentation
data AbsoluteTime Source
AbsoluteTime is TAI, time as measured by a clock.
taiEpoch :: AbsoluteTimeSource
The epoch of TAI, which is 1858-11-17 00:00:00 TAI.
addAbsoluteTime :: DiffTime -> AbsoluteTime -> AbsoluteTimeSource
addAbsoluteTime a b = a + b
diffAbsoluteTime :: AbsoluteTime -> AbsoluteTime -> DiffTimeSource
diffAbsoluteTime a b = a - b
type LeapSecondTable = Day -> IntegerSource
TAI - UTC during this day. No table is provided, as any program compiled with it would become out of date in six months.
utcDayLength :: LeapSecondTable -> Day -> DiffTimeSource
parseTAIUTCDATFile :: String -> LeapSecondTableSource
Parse the contents of a tai-utc.dat file. This does not do any kind of validation and will return a bad table for input not in the correct format.