Clock Facts

A broken clock is always right twice a day.

The hands of the clock on the back of the $100 bill are set at approximately 4:10.

Before clocks, there were candle clocks that when burned, indicated the passage of periods of time. To set an alarm, you pushed a nail into the desired point and the nail would fall and clank on the metal holder.

Clocks made before 1660 had only one hand - an hour hand.

A microwave uses more electricity powering its clock and standby mode than actually heating food, because it's plugged in 24/7 but only runs for a few minutes per day.