Moment.js

Parse, validate, manipulate, and display dates in JavaScript

Screenshots

Hunter's comment

The is a JavaScript tool to parse, validate or manipulate JavaScript. It was designed to work in both browser and Node.js.

This is a lightweight JavaScript date library for parse code and format dates with ease.

It gives relative time, calendar time and support multiple locales. This tool is distributable freely under the terms of the MIT license.

Link

http://momentjs.com/