💡 Xem giờ cơ bản — Fun Facts

The oldest clocks had no hands — they used shadows from the sun.

Long ago people used a sundial. A stick made a shadow that moved as the sun crossed the sky, showing the time of day.

A whole day is 24 hours, so the hour hand goes around twice.

The short hand loops the clock once in the morning and once at night. Two loops make one full day and night.

Clock hands turn in a special direction called clockwise.

The hands always move the same way, past 1, 2, 3 and on around. We named that direction 'clockwise' after the clock!

When the long hand points straight up to 12, it is o'clock.

If the long hand is on 12 and the short hand is on 3, it is 3 o'clock. That means the hour has just started.

A clock face has the numbers 1 to 12 in a circle.

The numbers go around like a ring. The hands point at them to tell you what time it is.

There are 60 minutes in one hour.

The long hand travels all the way around the clock once every hour. That takes 60 whole minutes!

A clock has a short hand for hours and a long hand for minutes.

The short, slow hand points to the hour. The long hand points to the minutes and moves around faster.