Time Class 1 Notes Maths Chapter 6

The Concept of Time

Time is an important part of our daily lives. We use time to plan our day, go to school, play, eat, and sleep. Time helps us keep track of different activities that happen throughout the day.

In the image below, Hasan’s daily routine events have been put in sequence according to the time at which they are done.
Times of the Day

• We measure time in seconds, minutes, hours, days, weeks, months and years with clocks and calendars.
• A day has 24 hours. We use A.M. to tell the time running from midnight to noon and P.M. for the time running from noon to midnight.
• We do not write A.M. or P.M. at 12 o’clock in the afternoon and 12 o’clock at midnight. 12 o’clock at noon is written as 12 noon and 12 o’clock at midnight is written as 12 midnight. 

About the Clock

1. Analog Clock
2. Digital Clock

Analog Clock

An analog clock uses numbers from 1 to 12 and two hands to show the time.

• The short hand is called the hour hand. It tells the hours.
• The long hand is called the minute hand. It tells the minutes.

How an Analog Clock Works

• The hour hand moves from one number to the next in one hour.
• The minute hand makes a full circle around the clock in one hour.

Edurev Tip: The word 'hour' is short, so the shorter hand is the hour hand. The word 'minute' is long, so the longer hand is the minute hand.

Reading Time on an Analog Clock

2o'clock

• When the minute hand points to 12, the hour hand tells us the time in full hours. For example:
• If the hour hand points to 2 and the minute hand points to 12, we say it is 2 o'clock. It is written as 2:00.

Edurev Tip: The phrase "2 o'clock" comes from "two of the clock."

More Examples of Reading Time on an Analog Clock

1. 3 o'clock (3:00):

   • The hour hand points to 3.
   • The minute hand points to 12.
   • This means it is 3 o’clock, which we write as 3:00.
      3 o’clock

2. 5 o'clock (5:00):

   • The hour hand points to 5.
   • The minute hand points to 12.
   • This means it is 5 o’clock, which we write as 5:00. 5 o’clock

3. 9 o'clock (9:00):

   • The hour hand points to 9.
   • The minute hand points to 12.
   • This means it is 9 o’clock, which we write as 9:00.

9 o'clock

Digital Clock

A digital clock shows time using only numbers without hands. It uses two sets of numbers separated by a colon to tell the hour and minutes.

Examples:
1) 3o' clock in Digital and Analog Clock
3o' Clock in digital and Analog Clock

2) 

3) 
 

Days of a Week

There are seven days in a week.
Monday is considered as the first day of the week in our country.
So, Sunday is the last day or the seventh day of the week.
The most common abbreviations used for the week days are:

Months of a Year

A year has 12 months.

January is the first month of the year and December is the last month of the year.

Edurev Tips: The months of the year are always in order.