| Safe Haskell | Safe |
|---|---|
| Language | Haskell2010 |
Data.Time.LocalTime
Synopsis
- data TimeZone = TimeZone {}
- timeZoneOffsetString :: TimeZone -> String
- timeZoneOffsetString' :: Maybe Char -> TimeZone -> String
- minutesToTimeZone :: Int -> TimeZone
- hoursToTimeZone :: Int -> TimeZone
- utc :: TimeZone
- getTimeZone :: UTCTime -> IO TimeZone
- getCurrentTimeZone :: IO TimeZone
- data TimeOfDay = TimeOfDay {}
- midnight :: TimeOfDay
- midday :: TimeOfDay
- makeTimeOfDayValid :: Int -> Int -> Pico -> Maybe TimeOfDay
- timeToDaysAndTimeOfDay :: NominalDiffTime -> (Integer, TimeOfDay)
- daysAndTimeOfDayToTime :: Integer -> TimeOfDay -> NominalDiffTime
- utcToLocalTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay)
- localToUTCTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay)
- timeToTimeOfDay :: DiffTime -> TimeOfDay
- timeOfDayToTime :: TimeOfDay -> DiffTime
- dayFractionToTimeOfDay :: Rational -> TimeOfDay
- timeOfDayToDayFraction :: TimeOfDay -> Rational
- data CalendarDiffTime = CalendarDiffTime {}
- calendarTimeDays :: CalendarDiffDays -> CalendarDiffTime
- calendarTimeTime :: NominalDiffTime -> CalendarDiffTime
- scaleCalendarDiffTime :: Integer -> CalendarDiffTime -> CalendarDiffTime
- data LocalTime = LocalTime {}
- addLocalTime :: NominalDiffTime -> LocalTime -> LocalTime
- diffLocalTime :: LocalTime -> LocalTime -> NominalDiffTime
- utcToLocalTime :: TimeZone -> UTCTime -> LocalTime
- localTimeToUTC :: TimeZone -> LocalTime -> UTCTime
- ut1ToLocalTime :: Rational -> UniversalTime -> LocalTime
- localTimeToUT1 :: Rational -> LocalTime -> UniversalTime
- data ZonedTime = ZonedTime {}
- utcToZonedTime :: TimeZone -> UTCTime -> ZonedTime
- zonedTimeToUTC :: ZonedTime -> UTCTime
- getZonedTime :: IO ZonedTime
- utcToLocalZonedTime :: UTCTime -> IO ZonedTime
Time zones
A TimeZone is a whole number of minutes offset from UTC, together with a name and a "just for summer" flag.
Constructors
| TimeZone | |
Fields
| |
Instances
timeZoneOffsetString :: TimeZone -> String Source #
Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime).
timeZoneOffsetString' :: Maybe Char -> 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.
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
Time of day as represented in hour, minute and second (with picoseconds), typically used to express local time of day.
Constructors
| TimeOfDay | |
Instances
timeToDaysAndTimeOfDay :: NominalDiffTime -> (Integer, TimeOfDay) Source #
Convert a period of time into a count of days and a time of day since midnight. The time of day will never have a leap second.
daysAndTimeOfDayToTime :: Integer -> TimeOfDay -> NominalDiffTime Source #
Convert a count of days and a time of day since midnight into a period of time.
utcToLocalTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source #
Convert a time of day in UTC to a time of day in some timezone, together with a day adjustment.
localToUTCTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source #
Convert a time of day in some timezone to a time of day in UTC, together with a day adjustment.
timeToTimeOfDay :: DiffTime -> TimeOfDay Source #
Get the time of day given a time since midnight. Time more than 24h will be converted to leap-seconds.
timeOfDayToTime :: TimeOfDay -> DiffTime Source #
Get the time since midnight for a given time of day.
dayFractionToTimeOfDay :: Rational -> TimeOfDay Source #
Get the time of day given the fraction of a day since midnight.
timeOfDayToDayFraction :: TimeOfDay -> Rational Source #
Get the fraction of a day since midnight given a time of day.
Calendar Duration
data CalendarDiffTime Source #
Constructors
| CalendarDiffTime | |
Fields
| |
Instances
scaleCalendarDiffTime :: Integer -> CalendarDiffTime -> CalendarDiffTime Source #
Scale by a factor. Note that scaleCalendarDiffTime (-1) will not perfectly invert a duration, due to variable month lengths.
Local Time
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
| |
Instances
addLocalTime :: NominalDiffTime -> LocalTime -> LocalTime Source #
addLocalTime a b = a + b
diffLocalTime :: LocalTime -> LocalTime -> NominalDiffTime Source #
diffLocalTime a b = a - b
utcToLocalTime :: TimeZone -> UTCTime -> LocalTime Source #
Get the local time of a UTC time in a time zone.
localTimeToUTC :: TimeZone -> LocalTime -> UTCTime Source #
Get the UTC time of a local time in a time zone.
ut1ToLocalTime :: Rational -> UniversalTime -> LocalTime Source #
Get the local time of a UT1 time on a particular meridian (in degrees, positive is East).
localTimeToUT1 :: Rational -> LocalTime -> UniversalTime Source #
Get the UT1 time of a local time on a particular meridian (in degrees, positive is East).
A local time together with a time zone.
Constructors
| ZonedTime | |
Fields | |
Instances
zonedTimeToUTC :: ZonedTime -> UTCTime Source #