Leap-year Packages

General Date Format

a small date library whose focus is on this moment in time

Converts date to and from julian days in gLib GDate style

javascript code for finding the year is leap year or not

It is a simple npm package that allows you to check whether a given year is a leap year or a common year.

A date utility package with inbuilt date functions for different formats.

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

functionality related to leap year.

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

A comprehensive toolkit for working with dates, times, and epoch conversions in JavaScript. Provides utilities for date formatting, validation, leap year checking, and more.

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

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