1px Clock is an iPhone app that shows time, ticking away one pixel per second. Each square is built up of 60 rows of 60 pixels: one for each second. As such, one square represents one hour, and the total of 24 blocks make up 1 day. 1px Clock was developed by Japanese web design firm E-Bird, and is available as a 6×4 version and a 2×12 version. Download the 1px Clock here (free!). No iPhone? It’s also downloable as a screensaver. (Thx, Derek!)
The Colour Clock by London based designer Jack Hughes is a downloadable screen saver that represents the time in rotating color with hexadecimal color values. As the 6 digit clock ticks, the background color changes to the corresponding hexadecimal color. It is simply beautiful! Follow the Colour Clock link to see it in action. You can also see that hexadecimal value by clicking the button below the time.