The second hand refers to the pointer on the clock that moves in seconds. Every time it moves a big grid, it is 5 minutes.
A pointer on a clock that moves in seconds.
1 min =60 seconds.
1 hour =60 minutes =3600 seconds.
24 hours = 1440 minutes =86400 seconds.
Related content explanation
There are 12 numbers on the clock face, second hand, minute hand, hour hand and grid; The longest hand is the second hand, the second is the minute hand and the shortest is the hour hand. The number 12 divides the clock face into 12 large squares, each with 5 small squares and ***60 small squares. The minute hand points to 12, and the hour hand points to what time.
The measurement of angle has the following provisions: divide a right angle into 180 equal parts, each part is an angle of 1 degree, and the unit is degrees, marked with ".",1 degree as "1", and the n degree as "n". Divide the angle of 1 into 60 equal parts, each part is called the angle of 1, and 1 is marked as "1'". Divide the angle of 1' into 60 equal parts, each part is called the angle of 1 sec, and 1 sec is marked as "1". 1 =60′=3600″。