The Ultimate Clock is a cool looking free screen saver that displays the time with up to 10 different clocks on your desktop. Every time the screen saver starts you will see a new clock which gradually appears from your desktop. The screen saver is easy to customize and includes: Selecting the clock to chime every 15 minutes or at the top of the hour, displaying the second hand, randomly choosing a clock when the screen saver starts and changing the screen resolution.