Countdown Freeware
1.5.6 Office Tool
From Concentrate Software $0
support@fromconcentratesoftware.com OS X
http://www.fromconcentratesoftware.com/Countdown/index.php
Countdown is a one-trick pony, but it does it well. All it does is keep track of the time and alert you when the timer reaches zero. You can enter an end-date into the topmost field (examples: 3 pm, 12:01 am tomorrow) or enter how many hours, minutes, and seconds you need in the bottom fields. After you've done the simple setup, simply hit the Start Countdown button. Countdown updates a status bar item as it counts down. When it reaches zero, it shows a message and plays a sound to alert you.