If you're the sort of person that enjoys making things far more complicated than they need be, the Chronochrome clock is the timekeeper for you.
The Chronochrome clock omits numerals in favor of colors. Each color represents a specific number, and the Chronochrome cycles through these colors according to the current time. As you might imagine, the Chronochrome also handily serves as a nightlight and mood light.
I'm typically a big fan of gadgets that force me to think or be creative, but somehow learning the Chronochrome clock's code seems like a whole lot of work to just tell the time.