Safe Haskell	None
Language	Haskell2010

Data.Time.LocalTime.TimeZone.Unix

Contents

Time Zone
Country Information
Zone Information
OlsonData
Leap Seconds

Description

UNIX-specific handling of time data.

Synopsis

getCurrentTimeZoneSeries :: IO TimeZoneSeries
getTimeZoneSeriesForZone :: Maybe TimeZoneSpec -> IO TimeZoneSeries
type CountryCode = String
getCountryCodes :: IO [(CountryCode, String)]
type TimeZoneSpec = String
data ZoneDescription = MkZoneDescription {
- zoneCountries :: [CountryCode]
- zoneLocation :: (Rational, Rational, Bool)
- zoneName :: TimeZoneSpec
- zoneComment :: String
}
getZoneDescriptions :: IO [ZoneDescription]
getCurrentOlsonData :: IO OlsonData
getOlsonDataForZone :: Maybe TimeZoneSpec -> IO OlsonData
getLeapSecondList :: IO LeapSecondList

Time Zone

getCurrentTimeZoneSeries :: IO TimeZoneSeries Source #

Get the current TimeZoneSeries (as specifed by TZ env-var or else the system default).

getTimeZoneSeriesForZone :: Maybe TimeZoneSpec -> IO TimeZoneSeries Source #

Get the TimeZoneSeries for this TimeZoneSpec (or for the system default), defaulting to UTC if the name is not found.

Country Information

type CountryCode = String Source #

ISO 3166 alpha-2 country code (i.e., two capital letters).

getCountryCodes :: IO [(CountryCode, String)] Source #

Get the country codes and names found in iso3166.tab. Note that earlier versions of zoneinfo don't include this file, in which case this will throw exception matching isDoesNotExistError.

Zone Information

type TimeZoneSpec = String Source #

Time-zone specification as used in the TZ environment variable, e.g. "America/Los_Angeles".

data ZoneDescription Source #

Information about a zone.

Constructors

MkZoneDescription

Fields

zoneCountries :: [CountryCode]
The countries that overlap the zone.
zoneLocation :: (Rational, Rational, Bool)
(Latitude, longitude, accuracy) of principal location in degrees, + is north, east. Accuracy indicates that the location is specified to arcseconds rather than arcminutes.
zoneName :: TimeZoneSpec
Zone name.
zoneComment :: String
Comments; present if and only if a country has multiple zones.

getZoneDescriptions :: IO [ZoneDescription] Source #

Get the zone descriptions found in zone1970.tab (or zone.tab).

OlsonData

getCurrentOlsonData :: IO OlsonData Source #

Get the current OlsonData (as specifed by TZ env-var or else the system default).

getOlsonDataForZone :: Maybe TimeZoneSpec -> IO OlsonData Source #

Obtain an OlsonData file for this TimeZoneSpec (or for the system default). If the file is not in the database, return an empty OlsonData with the name in olsonPosixTZ.

Leap Seconds

getLeapSecondList :: IO LeapSecondList Source #

Get the leap-second list found in leap-seconds.list. Note that earlier versions of zoneinfo don't include this file, in which case this will throw exception matching isDoesNotExistError.