Measurement of Time

We know that the measurement of time is read by a clock or a watch.

Any clock or watch except a digital watch, has a dial. On the circular border of the dial of a watch or clock there are the hour numbers from 1 to 12 at equal intervals. Between the two numbers there are five divisions. Each division represents a minute.

$Measurement of Time$

There are two hands of different lengths having one of the ends fixed at the center of the dial. The small hand is the hour hand and longer hand is the minute hand. The hour-hand moves slower than the minute hand. There is also a third hand called the second-hand. It moves very fast.

The hour hand makes one round of the dial in 12 hours. It moves from one number to its nearest number in one hour, i.e., the hour hand goes from 12 to 1 or 1 to 2 or 2 to 3, ........ etc., in one hour.

The minute hand makes one round of the dial in 1 hour. It moves across one division in one minute or five divisions in 5 minutes.

If there is a second-hand, it makes one round of the dial in one minute, i.e. it moves across one division in one second.

On this basis we say:

1 hour = 60 minutes or           60 minutes = 1 hour

1 minute = 60 seconds or           60 seconds = 1 minute

1 hour = 60 minutes = 60 x 60       or           3600 seconds

Related Concepts

● Units for Measuring Length

● Measuring Instruments

● To Measure the Length of a Line-segment

● Perimeter of a Figure

● Unit of Mass or Weight

● Examples on Unit of Mass or Weight

● Units for The Measurement of Capacity

● Examples on Measurement of Capacity

● Measurement of Time

● Read a Watch or a Clock

● Antemeridian (a.m.) or Postmeridian (p.m.)