Specs

beginning_of_month(integer(), integer()) :: Date.t()

Returns the first day of the given month on the given year.

Specs

gregorian_easter(integer()) :: Date.t()

Returns the date of Easter for the given year.

examples

Examples

iex> Holidefs.DateCalculator.gregorian_easter(2016)
~D[2016-03-27]

iex> Holidefs.DateCalculator.gregorian_easter(2015)
~D[2015-04-05]

Specs

gregorian_orthodox_easter(integer()) :: Date.t()

Returns the date of Orthodox Easter for the given year.

examples

Examples

iex> Holidefs.DateCalculator.gregorian_orthodox_easter(2016)
~D[2016-05-01]

iex> Holidefs.DateCalculator.gregorian_orthodox_easter(2015)
~D[2015-04-12]

Specs

julian_orthodox_easter(integer()) :: Date.t()

Returns the date of Orthodox Easter for the given year.

examples

Examples

iex> Holidefs.DateCalculator.julian_orthodox_easter(2016)
~D[2016-04-18]

iex> Holidefs.DateCalculator.julian_orthodox_easter(2015)
~D[2015-03-30]

Specs

next_day_of_week(Date.t(), integer()) :: Date.t()

Returns the next day of week after the given day.

Specs

nth_day_of_week(integer(), integer(), integer(), integer()) :: Date.t()

Returns the nth day of the week.

Specs

previous_day_of_week(Date.t(), integer()) :: Date.t()

Returns the previous day of week after the given day.