What he ended up with is a clock that is almost impossible to read correctly. He’s using colors to tell the time. We immediately thought this might make use of resistor codes as the display but ...

There are 12 numbers around the clock face, and each interval is 5 minutes, so there are 12 × 5 = 60 minutes in an hour. Let's use this knowledge to tell the time on the clocks below. This clock ...