1. There are three hands on the clock face. They are (hour hand), (minute hand) and (second hand). The fastest is the second hand, and the slowest is the hour hand.

2. There are (12) numbers, (12) large squares and (60) small squares on the clock face; There are (1) large cells between every two numbers, that is, (5) small cells.

3, clockwise 1 grid is (1) hours; It takes (5) minutes to walk 1 square and (1) minutes to walk 1 square. It takes (5) seconds for the second hand to go 1 and (1) seconds for the second hand to go.

4. When the hour hand goes 1, the minute hand just goes (1) laps, and the minute hand goes 1 laps for (60) minutes, that is, (1) hours. Clockwise 1 turn, minute hand (12 turn).

5. The minute hand goes 1, the second hand just goes (1) laps, and the second hand goes 1 laps for (60) seconds, which is (1) minutes.

6. When the hour hand turns from one number to the next, it is (1 hour). The minute hand moves from one number to the next (5 minutes). The second hand turns from one number to the next (5 seconds).

7. The time when the hour hand and the minute hand are at right angles on the clock face is (3 o'clock sharp) and (9 o'clock sharp).

8. The advance rate between every two adjacent time units is 60.