Gideros Countdown class displays (and updates) the time left until a time provided by the user. The time can be provided in any time units, and they will be recalculated to specified time units. It is possible to specify which units or text will appear in countdown and which text must be hidden if a certain unit reaches 0 by using labels for each time unit.
Countdown Timer until specified Date-Time starts a countdown to a time defined in forms. It can take a given time for the end of a countdown from form inputs which define the year, month, day, hour, minute, and second. The object can also take the end time from static page elements with identifiers which start with a given prefix. The object can start the countdown and keep updating page elements which show the remaining time to the end.