Module util

Utility functions.

Functions

• days_in_year
  Get the number of calendar days in a given year.
• days_in_year_month
  Get the number of days in the month of a given year.
• is_leap_year
  Returns if the provided year is a leap year in the proleptic Gregorian calendar. Uses astronomical year numbering.
• weeks_in_year
  Get the number of weeks in the ISO year.