Check if a year is a leap year

check if the given year is a leap year

Test if a value corresponds to a leap year in the Gregorian calendar.

returns boolean leap year or non-leap year

Test if a value corresponds to a leap year in the Gregorian calendar.

Check if a year is a leap year in the Persian calendar.

This is function to determine the year is Leap year

Returns true if the year is a leap year.

A versatile JavaScript library for accurately calculating age from a birthdate in 'YYYY-MM-DD' format, including leap year support.

Chinese Calendar

Check if a year is a leap year

jsgantt-improved with leap year support and holiday management system

A utility to check if a given year is a leap year

Get the last leap year since a specific date

this program checks if a year is a leap year or not, user enters the year.

Leap Year Description

> This utility library provides multiple functionalities like covert number of months into years, convert years into number of months, number of days in a month of year, year is leap year or not, get number of weekends, get remaining days in month or year

A simple and lightweight module to detect leap year

Pass in a year (an integer, not a Date). Returns true if it's a leap year, false if not

Calendar helpers: week number, leap year, days in month and date arithmetic.