EN हिं

NCERT Solutions for Class 4th Maths Chapter 12 Ticking Clocks and Turning Calendar — Let Us Do

Book page 175 – 177 Updated on2026-09-19

Q1.
Notice the number of days in February in the years 2024 and 2025. Number of days in Feb 2024 = _____________ Number of days in Feb 2025 = _____________
FEB 2024
SunMonTueWedThuFriSat
123
45678910
11121314151617
18192021222324
2526272829
FEB 2025
SunMonTueWedThuFriSat
1
2345678
9101112131415
16171819202122
232425262728
The two February pages of the calendar, exactly as the book prints them.
Answer
FEB 2024
SunMonTueWedThuFriSat
123
45678910
11121314151617
18192021222324
2526272829
FEB 2025
SunMonTueWedThuFriSat
1
2345678
9101112131415
16171819202122
232425262728
The two February pages of the calendar, exactly as the book prints them.

Look at the last date printed in each calendar page.

Number of days in Feb 2024 = 29
Number of days in Feb 2025 = 28
29 − 28 = 1 extra day in 2024

So February 2024 had 29 days and February 2025 had 28 days.

Why it happens: 2024 is a leap year. In a leap year February gets one extra day, so it ends on 29 instead of 28.
Tip: Parv says he was born on 29 February 2016. That date comes only in a leap year, so his birthday falls once in four years.
Q2.
Fill in the blanks with consecutive leap years before and after 2024. ________, ________, 2024, ________, ________, ________
Answer

Leap years come after every 4 years. So jump back by 4 twice, and jump forward by 4 three times.

Going back: 2024 − 4 = 2020,   2020 − 4 = 2016
Going ahead: 2024 + 4 = 2028,   2028 + 4 = 2032,   2032 + 4 = 2036

The line is filled like this:

2016, 2020, 2024, 2028, 2032, 2036
Why it happens: The extra day is added once in four years, so the leap years are spaced 4 years apart.
Check it yourself: Count on your fingers in fours from 2016: 2016, 2020, 2024, 2028, 2032, 2036. Every one of them has 29 February.
Q3.
We know that most years have 365 days. How many days would a leap year have?
Answer

A leap year has one extra day in February.

365 + 1 = 366 days

So a leap year has 366 days.

Why it happens: In an ordinary year February has 28 days. In a leap year it has 29 days, which is 1 day more, so the whole year is 1 day longer.
Q4.
Write the names of the months when you celebrate your favourite festivals. (Name of the Festival / Name of the Month)
Answer

This one you fill from your own year. Do it like this:

  1. Write down four or five festivals your family celebrates.
  2. Find each festival on this year’s calendar.
  3. Write the name of the month in which that date falls.
Sample answer:
Name of the FestivalName of the Month
Pongal / Makar SankrantiJanuary
HoliMarch
Raksha BandhanAugust
DiwaliOctober or November
ChristmasDecember
Tip: A few festivals, such as Id and Guru Nanak Jayanti, follow the moon. Their month changes a little every year, so look them up on this year’s calendar.
Q5.
Answer the following questions by writing the appropriate days of the week: a) Today: _______ b) Yesterday: _______ c) Tomorrow: _______ d) Day after tomorrow: _______ e) Day before yesterday: _______
Answer

Start from the day it is today, and then count one step back or one step forward.

  • Yesterday is one day before today.
  • Tomorrow is one day after today.
  • Day after tomorrow is two days after today.
  • Day before yesterday is two days before today.
Sample answer: Suppose today is Wednesday.
QuestionDay
a) TodayWednesday
b) YesterdayTuesday
c) TomorrowThursday
d) Day after tomorrowFriday
e) Day before yesterdayMonday
Why it happens: The seven days come in a fixed ring — Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday — and then Sunday again. So you only have to step round the ring.
Q6.
July 1 is a Monday. Write the dates for the next two Mondays. ___________________________________________
Answer

A week has 7 days, so the next Monday comes 7 days later.

1 + 7 = 8
8 + 7 = 15

The next two Mondays are July 8 and July 15.

JULY
SunMonTueWedThuFriSat
123456
78910111213
14151617181920
21222324252627
28293031
July with 1 on a Monday. The next two Mondays are ringed.
Why it happens: Every column of a calendar holds one weekday. Going straight down a column means adding 7 each time.
Tip: The Mondays of that July are 1, 8, 15, 22 and 29 — all seven apart.
Q7.
Laali is born on 04/07/2014 and Chotu is born on 04/12/2019. Who is older among the two and how much? Laali will turn 5 years old on ______________. Chotu’s 10th birthday will be celebrated on ________________.
Answer

Both dates are in DD/MM/YYYY form. So Laali was born on 4 July 2014 and Chotu on 4 December 2019.

Who is older? The one born earlier is older, and 2014 comes before 2019. So Laali is older.

From 4 July 2014 to 4 July 2019 → 5 years
From 4 July 2019 to 4 December 2019 → July, August, September, October, November → 5 months
Laali is older by 5 years 5 months

Laali will turn 5 years old on 04/07/2019 (4 July 2019).

Birth year 2014 + 5 = 2019, same day and month → 04/07/2019

Chotu’s 10th birthday will be celebrated on 04/12/2029 (4 December 2029).

Birth year 2019 + 10 = 2029, same day and month → 04/12/2029
Why it happens: A birthday comes back on the same day and the same month every year, so only the year number changes.
Tip: Both children were born on the 4th, so you only have to compare the month and the year.
Q8.
Check the manufacturing and expiry dates on the wrapper of any biscuit packet. a) How old is the packet of biscuits? Answer: ____ months ____ days. b) How many more days are the biscuits safe to eat? Answer: ____ months ____ days.
Answer

Do it with a real packet:

  1. Find MFG (the making date) and EXP (the last safe date) on the wrapper.
  2. For part a), count from the MFG date up to today.
  3. For part b), count from today up to the EXP date.
  4. Count whole months first, then the leftover days.
Sample answer: Say the wrapper shows MFG 15/05/2025 and EXP 15/11/2025, and today is 20/08/2025.
a) 15 May → 15 August = 3 months, then 15 August → 20 August = 5 days
The packet is 3 months 5 days old.

b) 20 August → 20 October = 2 months
20 October → 31 October = 11 days, then 11 + 15 = 26 days
The biscuits are safe for 2 months 26 days more.
Tip: Always count the months first and the loose days afterwards. It is much easier than counting every single day.
Q9.
Notice the day on which July 15 falls in your calendar. Now find out what day is August 15? September 15? October 15? What pattern do you notice? Share in grade. Now choose a date and look up the day on which it falls. Challenge your friends to guess what day will the same date fall in the following month.
Answer

Look up 15 July in this year’s calendar, then the 15th of the next three months.

The pattern: the day of the week moves forward each month, by as many days as the month has beyond full weeks.

July has 31 days → 31 = 7 + 7 + 7 + 7 + 3 → move forward 3 days
August has 31 days → move forward 3 days
September has 30 days → 30 = 7 + 7 + 7 + 7 + 2 → move forward 2 days
Sample answer: Suppose 15 July is a Tuesday.
DateDayHow we got it
15 JulyTuesdaygiven
15 AugustFridayTuesday + 3
15 SeptemberMondayFriday + 3
15 OctoberWednesdayMonday + 2

The game: pick any date, look up its day, and count how many days your month has. Add 3 for a 31-day month, add 2 for a 30-day month, and you can name the day in the next month before your friend finds it.

Why it happens: A week is 7 days long. A 31-day month is 4 full weeks and 3 days over, so the same date lands 3 weekdays later next month.
Was this helpful?