Time Goes On Class 3 Maths Chapter 7 CBSE Notes - 2025-26
Time
Time is something that says by what duration or period something happens.
Time can be measured by using some devices called calendars or clocks.
In clocks time is measured in terms of hours, minutes, and seconds.
In calenders, time is measured in terms of days, months, and years.
Examples
Doing several things can take different amounts of time, some of the examples are below,
Clock
The clock is a device used to measure time.
Every day we have 24 hours.
Each hour has 60 minutes and each minute has 60 seconds.
A clock has three hands.
The bigger hand is the hour hand which moves slowly, and the smaller hand is the minute hand which moves at medium speed. The third hand that is smaller than the minute hand is the second's hand and it moves fastly.
For one day we have the morning, noon, the evening, or the night.
We have a 12-hour cycle, the first cycle is from midnight (12:00) to noon (12:00).
Another cycle is the reverse of the first cycle.
Calendar
A method of placing the days in a series of papers is called a calendar.
We can have days, weeks, and months in a calendar.
A calendar is usually made for a year, for 365 days.
In a week we have 7 days.
In a year we have 12 months.
The months can be divided into spring, summer, autumn, and winter seasons.
Each month consists of 30 or 31 days. Except for February, as it has 28 days normally and 29 in the leap year.
The leap year comes after every 4 years. Whereas February has 29 days. The year 2020 was a leap year and the next leap year will be 2024.
Solved Example 1: There are ………. Months in a year.
Ans: 12
Solved Example 2: List the months that have 31 days.
Ans: January, March, May, July, August, October, and December.
Solved Example 3: List the months that have 30 days.
Ans: November, April, June, and September.
Solved Example 4: Seven days make a week. True / False
Ans: True
Solved Example 5: Find how many weeks are there in your birth month.
Ans: My birth month is September, it has 4 weeks.
Solved Example 6: What is the speciality of the 15th of August and 2nd of October?
Ans: We celebrate Independence Day on the 15th of August and Gandhi Jayanthi on the 2nd of October.
Age
The amount of time that a person has spent since born is called age.
Age is measured in terms of years.
Solved Example 1: Find the age of these kids who are celebrating their birthday.
Celebrating a birthday
Ans: In the image, one of the questions is been solved, in that a birthday cake with four candles is matched to four, we can follow the same method to solve the remaining.
Cake Vs Birthday
Birth Certificate
It is an official document provided by the Government.
It has details about the date of birth of a person, the place of birth, and the parents’ names.
Solved Examples
By referring to the image given below answer the following.
Birth certificate
1. How old is Bincy by 02/05/2005?
Ans: Steps to find how old Bincy is,
From the Birth Certificate we know that Bincy was born on 02/05/2002.
As per the question we have to find how old Bincy is, which means we have to find her age.
Then we can minus the current date to the date of birth.
Then it will be, 02/05/2005 - 02/05/2002
The date and month of birth are the same on both of the dates. Hence we can minus the year 2005 - 2002 = 3
Hence Bincy will be 3 years old.
2. Bincy was born on 02 ……….. 2002.
Ans: As per the Birth Certificate, Bincy was born on 02/05/2002.
3. On which date this birth certificate was registered?
Ans: It is mentioned in the Birth Certificate that it was registered on 02/05/2002.
4. By 02/05/2010, Bincy will be eight years old. True / False.
Ans: By following the same steps mentioned above, we will calculate the age of Bincy by 02/05/2010.
So we will minus 02/05/2010 by 02/05/2002.
Since both dates and months are the same, we can minus the year.
So, 2010 - 2002 = 8
Hence the given statement is true.
Practise Problems
Q1. Mark these dates in the calendar.
5th of every month
28th of March
17th of November
27th of September
Q2. Choose the correct answer from the options below.
The year ………. is a leap year.
If this is the year 2020, then last year it was ……….
If it is the year 2022, then next year will be ………..
Ans1 :
Calendar
Ans 2: (i) 2020
(ii) The last year will be 2019.
(iii) The next year will be 2023.
Importance of CBSE Class 3 Maths Chapter 7 Time Goes On
We all need to be punctual and methodical throughout the day. Our output and consistency depend on the way we arrange our daily work schedule. A Class 3 student will understand the concepts of time and will solve Time Maths for Class 3 in the exercise easily.
Studying Class 3 Maths Chapter 7 will build a concept of time and its units. Students will learn the difference between years, months, days, weeks, hours, and minutes. They will also identify and determine the differences between long-term and short-term works.
Another objective of this chapter is to cover the concept of the calendar. Students will learn how to look at a calendar in the past and future as well. In fact, they will also learn to calculate the age of a person by using addition and subtraction operations relevant to months and weeks.
Benefits of Studying Vedantu’s Revision Notes for Class 3 Maths Chapter 7 PDF
This PDF file contains a simpler explanation of the concepts of calendar, months, years, dates, days, hours, etc. With their explanations, you will get the following benefits.
1. Proper practice
Get the Time Goes On Class 3 worksheets once you are done with the exercises of the textbook. Practice the sums given to fortify your conceptual foundation.
2. Revise the chapter before an exam
The revision notes will help you to revise this chapter a day before the exam. You can easily recall the concepts explained in the chapter by using the revision notes as a reference.
3. Developing an approach for particular question patterns
Focus on how the experts have solved the exercise questions and explained the mathematical concepts in the revision notes. Learn how to solve questions related to Ulta Pulta Time easily. Develop a strategy to answer how long does it take for certain chores and activities.
Refer to Chapter 7 Revision Notes for Quick Resolution of Doubts
Why wait then? Download these revision notes for this chapter for free and refer to them at your convenience. Learn how to solve questions of calendar magic by resolving all your queries. Become better at answering time-related questions and score well in the exams.
Study Materials for CBSE Class 3 Maths
Conclusion
Vedantu's free PDF notes for CBSE Class 3 Maths Chapter 7, "Time Goes On," provide young learners with a valuable resource to understand the concept of time and its measurement. These notes are meticulously designed to align with the CBSE curriculum, offering clear explanations and practical exercises to develop time-telling skills. Vedantu's commitment to quality education is evident in these notes, which simplify the concept of time in a relatable manner, helping students grasp this essential skill.
FAQs on Time Goes On Class 3 Maths Chapter 7 CBSE Notes - 2025-26
1. What key concepts are covered in the Class 3 Maths Chapter 7 revision notes on 'Time Goes On'?
These revision notes provide a quick summary of essential topics from the chapter. They focus on understanding the clock, reading a calendar, and sequencing events in time. Key concepts recapped include the functions of the hour and minute hands, the structure of a calendar with days, weeks, and months, and using terms like a.m. and p.m. correctly, all aligned with the 2025-26 CBSE syllabus.
2. How do these notes help to quickly revise telling time on a clock?
The notes offer a concise summary of how to read an analog clock. They clarify the roles of the short hour hand and the long minute hand, explaining that the hour hand points to the hour while the minute hand points to the minutes. This provides a quick recap for students to reinforce their understanding before an exam.
3. What is a simple way to remember the number of days in each month as covered in these notes?
The notes recap the popular 'knuckle method' for quick revision. By making a fist, you can use your knuckles and the spaces between them to remember the days in each month. The months on the knuckles have 31 days, while those in the spaces have 30 (except for February), making it an easy trick to recall.
4. How do the revision notes explain the difference between 'a.m.' and 'p.m.'?
The revision notes clearly summarise that 'a.m.' (ante meridiem) refers to the time period from midnight to noon (the morning), while 'p.m.' (post meridiem) refers to the time from noon to midnight (the afternoon, evening, and night). This distinction is crucial for correctly describing when daily events happen.
5. Why is it important to understand a calendar, and how do the notes help with this concept?
Understanding a calendar is essential for organising our lives, tracking important dates like birthdays and holidays, and understanding the passage of time. These revision notes summarise the structure of a calendar, explaining that:
- 7 days make a week.
- About 4 weeks make a month.
- 12 months make a year.
6. How can I use these notes to quickly revise solving problems about the order of events?
The revision notes summarise how to analyse a timeline or story to determine the sequence of events. They explain how to focus on key time-related words like 'before', 'after', and 'then' to place activities in their correct chronological order, a fundamental skill taught in this chapter.
7. What is a common point of confusion when reading a clock, and how do the notes help clarify it?
A common mistake is confusing the functions of the hour and minute hands. The revision notes provide a clear and simple rule for quick recall: the shorter hand points to the hour and moves slowly, while the longer hand points to the minutes and moves faster. This core distinction is emphasised to prevent errors.
