This mesmerizing Colour Clock takes the current time, converts it into a hexadecimal value, and uses the ever-changing shade as its background color. A screensaver for Macs can be downloaded too.

In 1862, John Nystrom suggested in his book the concept of hexadecimal time, subdividing a day by 16, so that there are 16 “hours” (or 10 “tims , ” pronounced “tontim”) in a day.