By using the plugins you could add countdown to your website without write a lot of style and scripts. These plugins include css and js files so you don’t need to worry about scripts or styles.
Smart Timer And Counter is a jQuery plugin that can be used to add timers and clocks to the web page.
This Pack contains Unlimited designs of countdown rings which can be generated by simply putting random numeric value.
The countdown is a jQuery plugin that comes with many powerful features, the template its very easy to skin with any image or color.
Fancy Countdown is a highly customizable jQuery plugin that lets you create an outstanding countdown.
This is a jQuery plugin that sets a div or span to show a countdown to a given time. There are tons of options available and everything is supported by good examples and code snippets.
Unobtrusive and easily skinable countdown jQuery plugin generating a time tag
This plugin mixes a jQuery countdown combined with canvas shapes easy to configure via a set of options.