For demo of this plugin please Click Here.
After click you will see countdown timer which is set for 30 sec and then page will show like new site will lanuch.
Countdown Timer: Joomla Countdown Timer is Brilliant Joomla plugin to show remaining time on your site. It also supports custom message and mail functionality.This module provides lots of functionality like mialing,date ,time and many more makes it the best joomla Countdown Timer module
1 - Working awesome in all modern browsers (Firefox, chrome, safari, IE8+)
2 - Very Handy Plugin at admin panel .
3 – You can configure date and time from backend.
4 - you can set custom message on your site when timer is running.
5 – visitor can mail to given custom mail ID.
For any query or issue please create a support ticket here http://webkul.com/ticket