In a typical mechanical hand clock the minute and hour hands ... Since the minute hand rotates 12 times for every one revolution of the hour hand, the gear ratio can easily be calculated.

O'clock is a way of telling the exact hour on a clock. We say "o'clock" when the minute hand (the long hand) points to the number 12 on the clock. When the minute hand points straight up to 12 ...

An analogue clock, a clock with hands, shows the numbers 1 through to 12. It is a 12-hour clock. The first 12 hours of the day, from midnight to midday, are called am. The next 12 hours ...