NCERT Class 3 Mathematics Maths Mela: Chapter 13 — Time Goes On
This chapter, 'Time Goes On' from the NCERT Class 3 Mathematics textbook 'Maths Mela', introduces basic concepts of time and calendars. It begins with a playful poem about a missing month in a calendar, highlighting the importance of July. The chapter then guides students through creating a calendar for July 2024. It includes practical exercises such as identifying the number of Sundays, listing dates that fall on Thursdays, calculating dates after a specific day, and determining the reopening date of a school after a holiday. These activities help students understand date calculations and the structure of a calendar month, reinforcing their grasp of time-related concepts essential for CBSE Mathematics.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 3 |
| Subject | Mathematics |
| Book | Maths Mela |
| Chapter | Chapter 13 — Time Goes On |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 1 minute |
| Word count | 141 |
Learning outcomes
- Students will be able to identify and create a calendar for a given month.
- Students will be able to count the number of specific days (e.g., Sundays) in a month.
- Students will be able to determine dates based on given starting points and durations.
- Students will understand basic date calculations for school openings and holidays.
Vocabulary
| Word | Meaning |
|---|---|
| Calendar | A chart or system showing the days, weeks, and months of a particular year. |
| Month | One of the twelve periods into which the year is divided. |
| Date | The day of the month or year, specified by number. |
| Holiday | A day of festivity or recreation when no work is done. |
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Practice questions
- How many days are there in July? Answer: 31 days.
- If July 1st is a Monday, what day of the week is July 8th? Answer: Monday.
- A holiday is on July 10th. If the holiday lasts for 3 days, on which date does it end? Answer: July 12th.
Frequently asked questions
What is the main topic of NCERT Class 3 Maths Chapter 13?
Chapter 13, 'Time Goes On', focuses on understanding calendars, days of the week, and calculating dates.
What year is the calendar for in the chapter?
The chapter asks students to make a calendar for July 2024.
What kind of exercises are included in this chapter?
Exercises involve counting Sundays, identifying Thursdays, calculating future dates, and determining school reopening dates.
How does this chapter help students with CBSE Mathematics?
It builds foundational skills in time management and numerical reasoning related to dates and durations.
What is the significance of the poem at the beginning of the chapter?
The poem introduces the concept of months in a calendar and playfully highlights the importance of knowing all the months.
Related resources
Important topics
Topics covered
NCERT Class 3 Mathematics — Maths Mela — Chapter 13 — Time Goes On. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.