Safe Haskell	Safe
Language	Haskell2010

Data.Time.LocalTime

Contents

Time zones
Time of day
Local Time

Synopsis

Time zones

data TimeZone Source

A TimeZone is a whole number of minutes offset from UTC, together with a name and a "just for summer" flag.

Constructors

TimeZone
Fields timeZoneMinutes :: Int The number of minutes offset from UTC. Positive means local time will be later in the day than UTC. timeZoneSummerOnly :: Bool Is this time zone just persisting for the summer? timeZoneName :: String The name of the zone, typically a three- or four-letter acronym.

Instances

Eq TimeZone Source
Data TimeZone Source
Ord TimeZone Source
Show TimeZone Source
NFData TimeZone Source
ParseTime TimeZone Source
FormatTime TimeZone Source

timeZoneOffsetString :: TimeZone -> String Source

Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime)

timeZoneOffsetString' :: NumericPadOption -> 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

utc :: TimeZone Source

The UTC time zone

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

data TimeOfDay Source

Time of day as represented in hour, minute and second (with picoseconds), typically used to express local time of day.

Constructors

TimeOfDay
Fields todHour :: Int range 0 - 23 todMin :: Int range 0 - 59 todSec :: Pico Note that 0 <= todSec < 61, accomodating leap seconds. Any local minute may have a leap second, since leap seconds happen in all zones simultaneously

Instances

Eq TimeOfDay Source
Data TimeOfDay Source
Ord TimeOfDay Source
Show TimeOfDay Source
NFData TimeOfDay Source
ParseTime TimeOfDay Source
FormatTime TimeOfDay Source

midnight :: TimeOfDay Source

Hour zero

midday :: TimeOfDay Source

Hour twelve

makeTimeOfDayValid :: Int -> Int -> Pico -> Maybe TimeOfDay Source

utcToLocalTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source

Convert a ToD in UTC to a ToD in some timezone, together with a day adjustment.

localToUTCTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) Source

Convert a ToD in some timezone to a ToD in UTC, together with a day adjustment.

timeToTimeOfDay :: DiffTime -> TimeOfDay Source

Get a TimeOfDay given a time since midnight. Time more than 24h will be converted to leap-seconds.

timeOfDayToTime :: TimeOfDay -> DiffTime Source

Find out how much time since midnight a given TimeOfDay is.

dayFractionToTimeOfDay :: Rational -> TimeOfDay Source

Get a TimeOfDay given the fraction of a day since midnight.

timeOfDayToDayFraction :: TimeOfDay -> Rational Source

Get the fraction of a day since midnight given a TimeOfDay.

Local Time

data LocalTime Source

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 localDay :: Day localTimeOfDay :: TimeOfDay

Instances

Eq LocalTime Source
Data LocalTime Source
Ord LocalTime Source
Show LocalTime Source
NFData LocalTime Source
ParseTime LocalTime Source
FormatTime LocalTime Source