Safe Haskell | Trustworthy |
---|---|

Language | Haskell2010 |

## Synopsis

- type MonthOfYear = Int
- type DayOfMonth = Int
- type DayOfYear = Int
- monthAndDayToDayOfYear :: Bool -> Int -> Int -> Int
- monthAndDayToDayOfYearValid :: Bool -> Int -> Int -> Maybe Int
- dayOfYearToMonthAndDay :: Bool -> Int -> (Int, Int)
- monthLength :: Bool -> Int -> Int

# Documentation

type MonthOfYear = Int Source #

Month of year, in range 1 (January) to 12 (December).

type DayOfMonth = Int Source #

Day of month, in range 1 to 31.

Day of year, in range 1 (January 1st) to 366. December 31st is 365 in a common year, 366 in a leap year.

monthAndDayToDayOfYear :: Bool -> Int -> Int -> Int #

Convert month and day in the Gregorian or Julian calendars to day of year. First arg is leap year flag.

monthAndDayToDayOfYearValid :: Bool -> Int -> Int -> Maybe Int #

Convert month and day in the Gregorian or Julian calendars to day of year. First arg is leap year flag.

dayOfYearToMonthAndDay :: Bool -> Int -> (Int, Int) #

Convert day of year in the Gregorian or Julian calendars to month and day. First arg is leap year flag.

monthLength :: Bool -> Int -> Int #

The length of a given month in the Gregorian or Julian calendars. First arg is leap year flag.