This guide supports the Time Goes On Class 3 maths worksheet on this page. It covers Class 3 Maths Chapter 13 from the NCERT Maths Mela book, which is part of the latest NCERT syllabus for CBSE schools. Topics include reading a calendar, days of the week, months and the days in a year, age and birthdays, a birth certificate, the analog clock and the digital clock, quarter past, half past and quarter to, minutes and hours, and how long different activities take. Use it with the printable Time Goes On worksheets for Class 3, the Time Goes On Class 3 quiz and the 15 Time Goes On Class 3 activities above.

Introduction to NCERT Class 3 Maths Chapter 13 Time Goes On

Book: Maths Mela, the NCERT Mathematics textbook for Class 3 (Grade 3). Chapter: 13, Time Goes On. Board: CBSE and other schools that follow NCERT. The chapter begins with a rhyme about a calendar in which July seems to be missing. Children make the calendar for July 2024, compare calendars of different years, find ages and dates from a birth certificate, observe the hands of a clock and measure how long everyday activities take.

What is there in the chapter?

• A rhyme about a new calendar and a calendar game
• Making and reading the calendar for July 2024: Sundays, Thursdays, three days after a date and the date a school opens after 15 days
• Collecting calendars of two years and finding what is the same and what changes
• A table of festivals and the dates on which they fall
• Months of a year, months with fewer than 30 days, the days in a year and the weeks in a year
• Age fun: finding the ages of family members and a puzzle about Hetal and her brother
• A birth certificate and questions on date of birth, age in different years, an eighth birthday, months old and days to the certificate
• Making your own birth certificate and writing important dates
• Observing an analog clock, the hour hand and the minute hand, and the time taken for breakfast
• Drawing hands for 8:15 or quarter past 8 and 8:30 or half past 8
• A day in the life of Hetal with times in o'clock
• Activities that take months, weeks, days, hours and minutes
• Minutes taken by everyday activities and the time passed between a start and an end time
• Digital and analog clocks and making a sand clock with an adult

NCERT Class 3 learning objectives for this chapter

These objectives are written from the content of the chapter. They are not copied from the book.

• To read a calendar and find dates and days of the week
• To know the months of a year and the number of days in a month and in a year
• To find the age of a person and the date of a birthday
• To read and write dates in the form day, month and year
• To tell the time on an analog clock to 5 minutes and on a digital clock
• To use the words o'clock, quarter past, half past and quarter to
• To find how many minutes pass between two times
• To compare how long activities take in minutes, hours, days, weeks and months

Learning outcomes

After this chapter and the practice on this page a Class 3 child should be able to:

• say how many Sundays are in a month by looking at its calendar
• find the date three days after July 22 and the date 15 days after July 7
• say that a year has 12 months, 365 days and 52 weeks
• find the age of Bincy on 2 May 2025 if she was born on 2 May 2015
• read 7:15 as quarter past 7 and 8:30 as half past 8
• say that 1 hour is 60 minutes and half an hour is 30 minutes
• say that growing carrots takes months and brushing teeth takes minutes
• tell an analog clock from a digital clock

Time Goes On Class 3 resources on this page

• Time Goes On Class 3 worksheet: a printable NCERT style worksheet on calendars, clocks and time.
• Time Goes On Class 3 quiz: a free 20-question online quiz with easy, average and thinking questions, picture questions and instant marks with a reason for every answer.
• Time Goes On Class 3 activities: 15 free online activities, made of 5 games, 5 workshops and 5 challenges, with marks and a comment after the challenges.
• Practice sheet: 16 questions you can type and check, with a Show answers button.

What is Class 3 Maths Chapter 13 Time Goes On?

Chapter 13 of the NCERT Class 3 Maths book Maths Mela is called Time Goes On. Time passes all the time and we measure it in different units. A day is split into hours and minutes, days are joined into weeks and months, and months are joined into a year. The calendar tells us about dates and days and the clock tells us about the time of day.

Reading a calendar

A calendar lists the days of a month under the names of the days of the week. The days of the week are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. In July 2024 the 1st falls on a Monday, so Mondays are 1, 8, 15, 22 and 29. Each date in the same column is 7 more than the one above it.

Months and the year

A year has 12 months: January, February, March, April, May, June, July, August, September, October, November and December. January, March, May, July, August, October and December have 31 days. April, June, September and November have 30 days. February has 28 days, or 29 in a leap year, and it is the only month with fewer than 30 days. A year has 365 days, or 366 in a leap year. 52 weeks make 364 days, so a year has 52 weeks and 1 day more. Hetal says there are 53 weeks in a year, but counting on a calendar shows 52 full weeks.

Dates, ages and a birth certificate

A birth certificate gives the date of birth, written as 02/05/2015, which means 2 May 2015. To find age, subtract the years. On 2 May 2025 Bincy is 2025 − 2015 = 10 years old. In 2030 she will be 15. Her eighth birthday was on 2 May 2023. On 2 August 2015 she was 3 months old. The certificate was made on 18 May 2015, which is 16 days after her birth because 18 − 2 = 16.

Age puzzles

Hetal is twice as old as her brother and also 10 years older. Try an age for the brother. If he is 8, Hetal would be 16, which is only 8 more. If he is 10, Hetal is 20, which is 10 more. So the brother is 10 and Hetal is 20. This is guess and check, a good way to solve a puzzle.

The analog clock

An analog clock has a short hour hand and a long minute hand. The numbers 1 to 12 show hours. Between two numbers there are 5 minutes, so there are 60 small marks and 60 minutes in 1 hour. When the minute hand is on 12 it is an o'clock time. When it is on 3 it is 15 minutes past, which is quarter past. When it is on 6 it is half past. When it is on 9 it is 45 minutes past, which is quarter to the next hour.

Digital clock and sand clock

A digital clock shows the time in digits, such as 07:15. An analog clock shows it with hands. Both tell the same time. A sand clock measures time as sand falls from one bottle into another. You can make one with two small bottles and find out how long the sand takes by looking at a clock.

How long does it take?

Some events take months, such as changing from summer to winter or growing carrots. Some take weeks, such as completing a chapter in class or growing a radish. Some take days and some take hours, such as stitching a shirt. Others take minutes, such as brushing teeth or taking a shower. To find the minutes taken, look at the start time and the end time. Breakfast from 07:00 to 07:15 took 15 minutes.

Types of questions to practise

Questions on this chapter ask children to read a calendar, find a date after some days, name months, find age and birthdays, read and set a clock, write times in words and digits, and find the minutes between two times. The online quiz on this page mixes choice questions, true or false questions, picture questions and typed answers, and the practice sheet has 16 typed answers.

Solved examples

Common mistakes

Time in daily life

We use time every day when we wake up, go to school, play and sleep. Ask your child to read the clock at home, find the date of a festival on a calendar, count the days to a birthday and say how long a school period or lunch break lasts.

What your child learns from the Time Goes On worksheet

• Reading dates and days from a calendar
• Months, weeks and days in a year
• Age and birthdays from a birth certificate
• Telling the time on analog and digital clocks
• Quarter past, half past and quarter to
• Minutes and hours taken for an activity
• Comparing months, weeks, days, hours and minutes
• Solving age puzzles by guess and check

Tips for parents and teachers

Keep a calendar at home and let your child mark birthdays and festivals. Ask your child to tell the time from a wall clock at different times of the day. Make a paper clock with a split pin so hands can be moved. Ask how long daily activities take and whether they take minutes or hours. Make a sand clock together with an adult and time a game with it.