With this pluging you can add a countdown to your blog. Just specify an end-date in the settings (backend) and put one single line of php-code somewhere you want this countdown to be displayed. This plugin uses the ajax-technology for updating the countdown every second. The moment you change the specified date in the settings, the plugin recognizes this change and updates itself according to the new date.

COUNTdown

This plugin allows you to add an ajax-updated countdown to your blog.

StatCounter

The Official StatCounter WordPress Plugin brings you all the powerful StatCounter features to your wordpress blog.
Including but not limited to the following:
<ul>
<li><a href="http://statcounter.com/features/#invisible-counter" rel="nofollow ugc">Invisible Counter Option</a></li>
<li><a href="http://statcounter.com/features/#configurable-counter" rel="nofollow ugc">Configurable Counter</a></li>
<li><a href="http://statcounter.com/features/#configurable-summary-stats" rel="nofollow ugc">Configurable Summary Stats</a></li>
<li><a href="http://statcounter.com/features/#magnify-user" rel="nofollow ugc">Magnify User</a></li>
<li><a href="http://statcounter.com/features/#drill-down" rel="nofollow ugc">Drill Down</a></li>
<li><a href="http://statcounter.com/features/#popular-pages" rel="nofollow ugc">Popular Pages</a></li>
<li><a href="http://statcounter.com/features/#entry-pages" rel="nofollow ugc">Entry Pages</a></li>
<li><a href="http://statcounter.com/features/#exit-pages" rel="nofollow ugc">Exit Pages</a></li>
<li><a href="http://statcounter.com/features/#came-from" rel="nofollow ugc">Came From</a></li>
<li><a href="http://statcounter.com/features/#keyword-analysis" rel="nofollow ugc">Keyword Analysis</a></li>
<li><a href="http://statcounter.com/features/#recent-keyword-activity" rel="nofollow ugc">Recent Keyword Activity</a></li>
<li><a href="http://statcounter.com/features/#search-engine-wars" rel="nofollow ugc">Search Engine Wars</a></li>
<li><a href="http://statcounter.com/features/#visitor-paths" rel="nofollow ugc">Visitor Paths</a></li>
<li><a href="http://statcounter.com/features/#visit-length" rel="nofollow ugc">Visit Length</a></li>
<li><a href="http://statcounter.com/features/#returning-visits" rel="nofollow ugc">Returning Visits</a></li>
<li><a href="http://statcounter.com/features/#recent-pageload-activity" rel="nofollow ugc">Recent Pageload Activity</a></li>
<li><a href="http://statcounter.com/features/#recent-visitor-activity" rel="nofollow ugc">Recent Visitor Activity</a></li>
<li><a href="http://statcounter.com/features/#country-state-city-stats" rel="nofollow ugc">Country/State/City Stats</a></li>
<li><a href="http://statcounter.com/features/#visitor-map" rel="nofollow ugc">Recent Visitor Google Map</a></li>
<li><a href="http://statcounter.com/features/#isp-stats" rel="nofollow ugc">ISP Stats</a></li>
<li><a href="http://statcounter.com/features/#browser-stats" rel="nofollow ugc">Browser Stats</a></li>
<li><a href="http://statcounter.com/features/#os-stats" rel="nofollow ugc">O.S. Stats</a></li>
<li><a href="http://statcounter.com/features/#resolution-stats" rel="nofollow ugc">Resolution Stats</a></li>
<li><a href="http://statcounter.com/features/#javascript-stats" rel="nofollow ugc">JavaScript Stats</a></li>
<li><a href="http://statcounter.com/features/#email-reports" rel="nofollow ugc">Email Reports</a></li>
<li><a href="http://statcounter.com/features/#multiple-site-management" rel="nofollow ugc">Multiple Site Management</a></li>
<li><a href="http://statcounter.com/features/#user-access-management" rel="nofollow ugc">User Access Management</a></li>
<li><a href="http://statcounter.com/features/#public-stats" rel="nofollow ugc">Public Stats</a></li>
<li><a href="http://statcounter.com/features/#blocking-cookie" rel="nofollow ugc">Blocking Cookie</a></li>
</ul>

StatCounter – Free Real Time Visitor Stats

StatCounter.com powered real-time detailed stats about the visitors to your blog.

COUNTdown vs StatCounter – Free Real Time Visitor Stats