Copyright	(C) 2016 Jason Johnson
License	BSD-style (see the file LICENSE)
Maintainer	Jason Johnson <jason.johnson.081@gmail.com>
Stability	experimental
Portability	POSIX, Windows
Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.HodaTime.Duration

Contents

Types
Constructors
Math

Description

A Duration is fixed period of time between global times.

Cookbook

Ninety minutes from now

import Data.HodaTime.Instant (Instant, now, add)
import Data.HodaTime.Duration (fromMinutes)

ninetyMinutesFromNow :: IO Instant
ninetyMinutesFromNow = do
  t <- now
  return (t `add` fromMinutes 90)

Synopsis

data Duration
fromStandardWeeks :: Int -> Duration
fromStandardDays :: Int -> Duration
fromHours :: Int -> Duration
fromMinutes :: Int -> Duration
fromSeconds :: Int -> Duration
fromMilliseconds :: Int -> Duration
fromMicroseconds :: Int -> Duration
fromNanoseconds :: Int -> Duration
add :: Duration -> Duration -> Duration
minus :: Duration -> Duration -> Duration

Types

data Duration Source #

Represents a duration of time between instants. It can be from days to nanoseconds, but anything longer is not representable by a duration because e.g. Months are calendar specific concepts.

Instances

Instances details

Show Duration Source #
Instance details Defined in Data.HodaTime.Instant.Internal Methods showsPrec :: Int -> Duration -> ShowS # show :: Duration -> String # showList :: [Duration] -> ShowS #
NFData Duration Source #
Instance details Defined in Data.HodaTime.Instant.Internal Methods rnf :: Duration -> () #
Eq Duration Source #
Instance details Defined in Data.HodaTime.Instant.Internal Methods (==) :: Duration -> Duration -> Bool # (/=) :: Duration -> Duration -> Bool #
Ord Duration Source #
Instance details Defined in Data.HodaTime.Instant.Internal Methods compare :: Duration -> Duration -> Ordering # (<) :: Duration -> Duration -> Bool # (<=) :: Duration -> Duration -> Bool # (>) :: Duration -> Duration -> Bool # (>=) :: Duration -> Duration -> Bool # max :: Duration -> Duration -> Duration # min :: Duration -> Duration -> Duration #
Hashable Duration Source #
Instance details Defined in Data.HodaTime.Instant.Internal Methods hashWithSalt :: Int -> Duration -> Int # hash :: Duration -> Int #