haskell98-1.0.1.1: Compatibility with Haskell 98 Source code Contents Index

Time

Synopsis

data ClockTime data Month = January | February | March | April | May | June | July | August | September | October | November | December data Day = Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday data CalendarTime = CalendarTime { ctYear :: Int ctMonth :: Month ctDay :: Int ctHour :: Int ctMin :: Int ctSec :: Int ctPicosec :: Integer ctWDay :: Day ctYDay :: Int ctTZName :: String ctTZ :: Int ctIsDST :: Bool } data TimeDiff = TimeDiff { tdYear :: Int tdMonth :: Int tdDay :: Int tdHour :: Int tdMin :: Int tdSec :: Int tdPicosec :: Integer } getClockTime :: IO ClockTime addToClockTime :: TimeDiff -> ClockTime -> ClockTime diffClockTimes :: ClockTime -> ClockTime -> TimeDiff toCalendarTime :: ClockTime -> IO CalendarTime toUTCTime :: ClockTime -> CalendarTime toClockTime :: CalendarTime -> ClockTime calendarTimeToString :: CalendarTime -> String formatCalendarTime :: TimeLocale -> String -> CalendarTime -> String

Documentation

data ClockTime Source

A representation of the internal clock time. Clock times may be compared, converted to strings, or converted to an external calendar time CalendarTime for I/O or other manipulations. Instances Eq ClockTime Ord ClockTime Show ClockTime

data Month Source

A month of the year. Constructors January February March April May June July August September October November December Instances Bounded Month Enum Month Eq Month Ord Month Read Month Show Month Ix Month

data Day Source

A day of the week. Constructors Sunday Monday Tuesday Wednesday Thursday Friday Saturday Instances Bounded Day Enum Day Eq Day Ord Day Read Day Show Day Ix Day

data CalendarTime Source

CalendarTime is a user-readable and manipulable representation of the internal ClockTime type. Constructors CalendarTime ctYear :: Int Year (pre-Gregorian dates are inaccurate) ctMonth :: Month Month of the year ctDay :: Int Day of the month (1 to 31) ctHour :: Int Hour of the day (0 to 23) ctMin :: Int Minutes (0 to 59) ctSec :: Int Seconds (0 to 61, allowing for up to two leap seconds) ctPicosec :: Integer Picoseconds ctWDay :: Day Day of the week ctYDay :: Int Day of the year (0 to 364, or 365 in leap years) ctTZName :: String Name of the time zone ctTZ :: Int Variation from UTC in seconds ctIsDST :: Bool True if Daylight Savings Time would be in effect, and False otherwise Instances Eq CalendarTime Ord CalendarTime Read CalendarTime Show CalendarTime

data TimeDiff Source

records the difference between two clock times in a user-readable way. Constructors TimeDiff tdYear :: Int tdMonth :: Int tdDay :: Int tdHour :: Int tdMin :: Int tdSec :: Int tdPicosec :: Integer Instances Eq TimeDiff Ord TimeDiff Read TimeDiff Show TimeDiff

getClockTime :: IO ClockTime Source

addToClockTime :: TimeDiff -> ClockTime -> ClockTime Source

addToClockTime d t adds a time difference d and a clock time t to yield a new clock time. The difference d may be either positive or negative.

diffClockTimes :: ClockTime -> ClockTime -> TimeDiff Source

diffClockTimes t1 t2 returns the difference between two clock times t1 and t2 as a TimeDiff.

toCalendarTime :: ClockTime -> IO CalendarTime Source

converts an internal clock time to a local time, modified by the timezone and daylight savings time settings in force at the time of conversion. Because of this dependence on the local environment, toCalendarTime is in the IO monad.

toUTCTime :: ClockTime -> CalendarTime Source

converts an internal clock time into a CalendarTime in standard UTC format.

toClockTime :: CalendarTime -> ClockTime Source

converts a CalendarTime into the corresponding internal ClockTime, ignoring the contents of the ctWDay, ctYDay, ctTZName and ctIsDST fields.

calendarTimeToString :: CalendarTime -> String Source

formats calendar times using local conventions.

formatCalendarTime :: TimeLocale -> String -> CalendarTime -> String Source

formats calendar times using local conventions and a formatting string. The formatting string is that understood by the ISO C strftime() function.

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