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


We know that the face of the clock is marked with the numbers from 1 to 12, which divide the clock face into 12 equal parts. These 12 parts are further divided into 60 small divisions. So, there are 5 small divisions between any two numbers on the clock face. The minute hand takes 5 minutes to move from one number to the next number. We have learnt how to read the time correct to 5 minutes.



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.)

What Time it is?

Time in Hours and Minutes

24 Hour Clock

Units of Time

Examples Units of Time

Time Duration

Calendar

Reading and Interpreting a Calendar

Calendar Guides us to Know





4th Grade Math Activities

From Measurement of Time to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.

Share this page: What’s this?

Recent Articles

  1. Types of Fractions |Proper Fraction |Improper Fraction |Mixed Fraction

    Jul 12, 24 03:08 PM

    Fractions
    The three types of fractions are : Proper fraction, Improper fraction, Mixed fraction, Proper fraction: Fractions whose numerators are less than the denominators are called proper fractions. (Numerato…

    Read More

  2. Worksheet on Fractions | Questions on Fractions | Representation | Ans

    Jul 12, 24 02:11 PM

    Worksheet on Fractions
    In worksheet on fractions, all grade students can practice the questions on fractions on a whole number and also on representation of a fraction. This exercise sheet on fractions can be practiced

    Read More

  3. Fraction in Lowest Terms |Reducing Fractions|Fraction in Simplest Form

    Jul 12, 24 03:21 AM

    Fraction 8/16
    There are two methods to reduce a given fraction to its simplest form, viz., H.C.F. Method and Prime Factorization Method. If numerator and denominator of a fraction have no common factor other than 1…

    Read More

  4. Conversion of Improper Fractions into Mixed Fractions |Solved Examples

    Jul 12, 24 12:59 AM

    To convert an improper fraction into a mixed number, divide the numerator of the given improper fraction by its denominator. The quotient will represent the whole number and the remainder so obtained…

    Read More

  5. Conversion of Mixed Fractions into Improper Fractions |Solved Examples

    Jul 12, 24 12:30 AM

    Conversion of Mixed Fractions into Improper Fractions
    To convert a mixed number into an improper fraction, we multiply the whole number by the denominator of the proper fraction and then to the product add the numerator of the fraction to get the numerat…

    Read More