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, it means it is the start of a new hour. The short hand ...

Here’s a design for a split-flap clock that doesn’t do it the usual way. Instead of the flaps showing numbers , Klapklok has a bit more in common with flip-dot displays. Klapklok updates every ...

A clock with hands (an analogue clock) shows us the numbers 1-12. There are 24 hours in one day, so we measure time by splitting the day into two halves. The first 12 hours of the day, from ...