Countdown.js is a JavaScript API for calculating time between two dates.
Countdown.js emphasizes producing intuitively correct description of timespans which are consistent as time goes on. To do this, Countdown.js uses the concept of “today’s date next month” to mean “a month from now”. As the days go by, Countdown.js produces consecutively increasing or decreasing counts without inconsistent jumps. The range of accuracy is only limited by the underlying system clock.
It can provide the timespan in many formats like milliseconds, seconds, minutes, hours, days, weeks and even millennias.
There are methods for displaying it as an English sentence like “3 years, 6 months, 21 days, 10 hours, and 32 minutes”.
The countdown can be reset easily and there are callbacks both on startand end.
Website: http://countdownjs.org/
Demo: http://countdownjs.org/demo.html
