Chapter 12 of Class 4 Maths Mela, Ticking Clocks and Turning Calendar, teaches time and calendar skills — reading clocks (including the 24-hour format), understanding AM/PM, and reading calendars including leap years.
Last Updated: September 23, 2026
NCERT Solutions for Class 4 Maths Chapter 12: Ticking Clocks and Turning Calendar
What this chapter teaches.
Reading a clock face for hours and minutes; the relationships 1 hour = 60 minutes, half hour = 30 minutes, quarter hour = 15 minutes; AM (before noon) and PM (after noon), and the 24-hour clock (where midnight = 00:00); reading a calendar — 12 months in a year, a week has 7 days, a year has 52 weeks; and leap years, which occur every 4 years and add an extra day (29 February) instead of the usual 28.
Activity 1 — Read the Clock.
Children practise reading the time shown on an analogue clock face, in both hours-and-minutes form and using AM/PM.
Activity 2 — Convert 12-hour to 24-hour.
Children convert times like “3:00 PM” into 24-hour format (“15:00”), and vice versa.
Activity 3 — Use the Calendar.
Given a calendar page, children find dates, count days between events, and identify the day of the week for a given date.
Why This Chapter Matters
Reading clocks and calendars accurately is an essential everyday-life skill, used constantly outside the maths classroom for scheduling, planning, and time management.
How to Use These Solutions
Practise reading a real analogue clock daily, and use a real calendar to count days between two dates. Download the full chapter from our Class 4 Maths NCERT book page, or browse the Class 4 hub.
See also the Extra Questions and Revision Notes for this chapter.
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Frequently Asked Questions
How many minutes are in an hour?
60 minutes.
How often does a leap year occur, and what extra day does it add?
Every 4 years, adding 29 February (instead of the usual 28-day February).
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