thyme-0.3.5.5: A faster time library

Safe HaskellNone
LanguageHaskell2010

Data.Thyme.Calendar

Contents

Description

UTCTime is not Y294K-compliant, and Bounded instances for the various calendar types reflect this fact. That said, the calendar calculations by themselves work perfectly fine for a wider range of dates, subject to the size of Int for your platform.

Synopsis

Documentation

type Years = Int Source

type Months = Int Source

type Days = Int Source

Days

newtype Day Source

The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.

Constructors

ModifiedJulianDay 

Fields

toModifiedJulianDay :: Int
 

Instances

modifiedJulianDay :: Iso' Day Int Source

Gregorian calendar

type Year = Int Source

type Month = Int Source

type DayOfMonth = Int Source

data YearMonthDay Source

Constructors

YearMonthDay 

Fields

ymdYear :: !Year
 
ymdMonth :: !Month
 
ymdDay :: !DayOfMonth
 

Instances

isLeapYear :: Year -> Bool Source

Gregorian leap year?

yearMonthDay :: Iso' OrdinalDate YearMonthDay Source

gregorian :: Iso' Day YearMonthDay Source

gregorianValid :: YearMonthDay -> Maybe Day Source

showGregorian :: Day -> String Source

gregorianMonthLength :: Year -> Month -> Days Source

gregorianMonthsClip :: Months -> YearMonthDay -> YearMonthDay Source

gregorianMonthsRollover :: Months -> YearMonthDay -> YearMonthDay Source

gregorianYearsClip :: Years -> YearMonthDay -> YearMonthDay Source

gregorianYearsRollover :: Years -> YearMonthDay -> YearMonthDay Source

Lenses

_ymdYear :: Lens' YearMonthDay Year Source

_ymdMonth :: Lens' YearMonthDay Month Source

_ymdDay :: Lens' YearMonthDay DayOfMonth Source