Table of contents  
How do we define Time?  
What is a Clock?  
Telling Time to the Half Hour  
Telling Time to the Nearest Five Minutes  
Telling Time to the Quarter Hour 
Time is like a magical ruler that helps us measure and understand the flow of events. It's like a special tool that tells us when things happen, how long they go on, and in what order they happen. Imagine it as a secret code that helps us keep track of all the exciting things that occur around us, like when the sun rises in the morning, when we play with our friends, or when we go to sleep at night. So, time is not just a clock ticking away but a fascinating way to make sense of the world around us!
A clock is used to measure time. A clock has two hands— the short hand called the hour hand and the long hand called the minute hand.
60 minutes = 1 hour
1 day = 24 hours
In the clock shown alongside, the hour hand is between 9 and 10 and the minute hand points to 6. The coloured part shows that the long hand or minute hand has moved half way round.
When the minute hand moves half way round the face of the clock, half an hour has passed and we say that it is half past nine.∴ Half past nine can also be written as 9:30.
60 minutes = 1 hour
30 minutes = Onehalf of an hour
Observe the following clocks
When the minute hand has moved past 6, we say the time in the following two ways:
1. First Way : The hour hand is between 4 and 5, so the time is after 4 o’ clock. The minute hand is at 7. Starting at 12 and counting ahead by 5s to 7, we get 35 minutes.
So, we say that the clock shows the time 35 minutes after 4 or 35 minutes past 4.
2. Second Way: The hour hand is between 4 and 5, so the time is before 5 o’ clock. The minute hand is at 7. Starting at 12 and counting back by 5s to 7, we get 25 minutes. We write 25 minutes to 5 to tell the time because there are 25 minutes left to 5 o’ clock.
Let us read time on the clocks given below:
The minute hand has moved one quarter (onefourth) of the circle in moving from 12 to 3.So, 1 / 4 of an hour = 15 minutes.
Examples:
30 videos62 docs10 tests

1. How do we define time? 
2. What is a clock? 
3. How do we tell time to the half hour? 
4. How do we tell time to the nearest five minutes? 
5. How do we tell time to the quarter hour? 

Explore Courses for Class 1 exam
