Display a HTML or Flash countdown.
For the HTML version, you can choose witch part of time wil be displayed by simple drag and drop : Display only days or only seconds or Year, month, dauys, hours, minutes, seconds...
Flash don't have option : he only have a beautiful skin !
Really easy to install, use and costomize. All css are really easy to change.
All Concrete5 add-ons from Myconcretelab