Padbury Clock Screensaver - Minimal screensaver for Mac
TimeLeft - TimeLeft is a versatile desktop utility - it can be used as a countdown clock, reminder, clock...
Aerial - A beautiful aerial screensaver for your Mac
CountDown Kings Free Countdown Timer - CountDown Kings Free Countdown Timer is a free countdown timer for Mac OS X and Windows operating systems.
Fliqlo Screensaver - A screensaver that displays the time using a flip clock.
Final Countdown - Final Countdown is a simple countdown timer just like sleeper timer on your TV that will work despite the fact your PC is powered off.