Module chronoutil::delta

Contains utility functions for shifting Date objects.

Functions

is_leap_year	Returns true if the year is a leap-year, as naively defined in the Gregorian calendar.
shift_months	Shift a date by the given number of months. Ambiguous month-ends are shifted backwards as necessary.
shift_years	Shift a date by the given number of years. Ambiguous month-ends are shifted backwards as necessary.
with_day	Shift the date to have the given day. Returns None if the day is not in the range 1-31.
with_month	Shift the date to have the given month. Returns None if the month is out of range.
with_year	Shift the date to have the given year.