Crate year_helper 

Year Helper

This library provides some useful functions to deal with years.

The year parameter follows the ISO 8601 proleptic Gregorian calendar, using astronomical year numbering like Chrono’s NaiveDate. This means year 0 is 1 BCE, year -1 is 2 BCE, and so on.

Usage

let year = 2020;
let month = 2;

let leap_year = year_helper::is_leap_year(year);

let days_in_month = year_helper::get_days_in_month(year, month);
let days_in_year = year_helper::get_days_in_year(year);

// or use the following functions if the year has been determined whether it is a leap year
let days_in_month = year_helper::get_days_in_month_with_leap_year(leap_year, month);
let days_in_year = year_helper::get_days_in_year_with_leap_year(leap_year);

Functions

get_days_in_month

Calculate how many days in a month.

get_days_in_month_2Deprecated

Calculate how many days in a month.

get_days_in_month_with_leap_year

Calculate how many days in a month.

get_days_in_year

Calculate how many days in a year.

get_days_in_year_2Deprecated

Calculate how many days in a year.

get_days_in_year_with_leap_year

Calculate how many days in a year.

is_leap_year

Determine whether a year is a leap year or not.