Countdown Clock puts a circular clock in your menu bar. This clock can count down from one date to another, or from one time of day to another. Use it to show you how much time you lave left in your work day, how much time is left on a project, or whatever else you can think of. To configure Countdown Clock, select Preferences from the Countdown Clock menu, which will appear as a small circle toward the right hand side of your menu bar.
Mac OS X 10.2 or later