Time Goes On Class 3 Maths Chapter 13 CBSE Notes 2025-26

Understanding time is an essential part of our daily lives, and this chapter introduces us to the basics of reading calendars and clocks, as well as understanding durations and important events. The activities in this chapter encourage students to observe days, months, and years and connect them with real-life events like holidays, birthdays, and daily routines.

Time can be measured and tracked in various units—minutes, hours, days, weeks, months, and years. One of the first things students do in this chapter is explore the calendar. For example, students may look at the month of July and answer questions like: How many Sundays are there in July? What dates fall on Thursdays? Such questions help in identifying patterns and using the calendar for practical purposes.

The chapter asks students to make their own calendar for July 2024. By listing days—Monday to Sunday—students can observe how dates are arranged and how weeks are structured. They also learn the Hindi names for the days: रविवार (Ravivar) for Sunday, सोमवार (Somvar) for Monday, and so on. These activities help students recognize repeated patterns, like which dates land on the same weekday each month, and answer questions like “three days after July 22 is July 25, and the day is Friday.”

Observing different calendars over multiple years allows children to notice that the names of the months and the number of days in a week always remain the same, though the starting weekday of each month may change. They are encouraged to list all 12 months: January, February, March, April, May, June, July, August, September, October, November, and December. Students also learn that February generally has less than 30 days, highlighting special cases like leap years.

Students calculate the total number of days in a year (usually 365), and explore weeks—there are typically 52 weeks in a year, but sometimes a few extra days mean the year can have 52 weeks and 1 or 2 days more. Through activities and questions, such as whether there are 53 weeks in any year, children practice simple calculations and understand how weeks and months fit into the year’s cycle.

Special attention is given to matching festivals and birthdays with their dates. Some festivals, like Independence Day (15 August), Republic Day (26 January), and Christmas (25 December), fall on fixed dates every year, making them easy to remember. Other festivals change dates based on the lunar calendar. Activities ask children to circle fixed-date festivals and fill in dates for their special occasions, applying their calendar skills.

The chapter introduces fun activities about age, such as solving short puzzles: “Hetal is twice as old as her brother and also 10 years older. What are their ages?” Students guess and calculate ages, helping build logical reasoning. Further exercises encourage students to write down their own age, their mother’s and grandmother’s ages at different points in time. Discussing these calculations with family makes understanding time personal.

Real-life examples, like the birth certificate of Bincy Thomas Jacob, help students learn how to read important documents. They answer questions like: On which date and in which month was Bincy born? How many years old will Bincy be in 2025 and 2030? When was Bincy’s certificate issued? Students also make their own birth certificate, filling in details about their birth, school admission dates, and age on certain dates. This connects math and time concepts directly to everyday life.

Students learn to tell time using both analog and digital clocks. They practice drawing hour and minute hands for different times, such as 7:00, 8:15, 8:30, and 7:15. They also calculate elapsed time, like how long Hetal took to eat breakfast (15 minutes if she started at 7:00 and finished at 7:15). Children are encouraged to match daily activities with their typical times, building schedules and understanding the importance of time management.

• Analog clocks have hour, minute, and sometimes second hands, while digital clocks show time in numbers.
• Digital clocks are commonly seen on school walls, smartphones, and computers; analog clocks are on many home walls and wrist watches.
• Students are encouraged to make their own sand timers at home as a hands-on activity, learning to measure time creatively.

The chapter includes tables showing how long common activities (like eating dinner, play periods, lunch breaks, or brushing teeth) take in minutes. Children fill in the time taken, helping them develop an understanding of duration. They are also asked what they can do in various time frames—like 5, 10, 15, 30, or 60 minutes—relating the abstract units of time to real tasks.

Through tables, students see examples of activities that take different amounts of time—months (knitting a sweater), weeks (stitching a shirt), days (finishing a school chapter), hours (changing clothes), and minutes (taking a shower or brushing teeth). This helps distinguish long-term and short-term events, and builds planning and thinking skills.

Teachers are encouraged to lead discussions, asking students how they arrived at their answers, and to relate the topic of time to the students’ own lives. Finding out about their families’ ages, the timing of daily routines, and making their own certificates brings learning to life and makes mathematical concepts meaningful and fun.

In summary, this chapter carefully blends practical tasks, logical puzzles, calendar reading, and clock exercises to deepen students' understanding of time. By connecting math concepts to family events, school routines, and cultural festivals, the lessons are made memorable and relevant to every child's experience.

Class 3 Maths Chapter 13 Notes – Time Goes On: Key Points for Quick Revision

These Class 3 Maths Chapter 13 revision notes make learning about calendars and clocks easy. Students can quickly practice finding days, dates, and durations while exploring real-life examples like festivals and birthdays. All important points are listed in simple language to help with quick last-minute revision.

By reviewing these "Time Goes On" notes, students will understand how to measure time in days, weeks, and minutes, and match daily routines with appropriate times. Each main topic—calendar reading, age puzzles, and time measurement—is explained step by step for simple, confident exam preparation.