Page 179 - Revised Maths Wisdom Class - 3

Time and Calendar 177

3 Fill in the blanks.
1
(a) 60 minutes = _______ hour. (b) 30 _______ = 2 hour

(c) _______ minutes = 1 quarters (d) 24 hours = _______ day
(e) 1 hour = 60 _______

4 Convert the following.

(a) 7 hours into minutes. (b) 8 hours 15 minutes into minutes.

(c) 15 days 7 hours into hours. (d) 8 days 21 hours into hours.
(e) 9 hours into minutes. (f) 3 weeks into days.
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(g) 5 weeks 5 days into days (h) 6 months into days.
(i) 15 days into hours. (j) 4 days 16 hours into hours.

5 Nitin went to school at 7:30 a.m. He spends 6 hours there. At what time will he
reach home?

6 A bus leaves Delhi for Shimla at 7.20 a.m. It reaches Shimla at 4.20 p.m. Find the
duration of Journey?

Months of a Year

Month Number of Days Month Number of Days

January 31 July 31
February 28 or 29 August 31

March 31 September 30
April 30 October 31

May 31 November 30

June 30 December 31

Remember!emember!emember!

 Aft er every 4 years, February has 29 days and that year is called a leap year.

 A leap year has 366 days.
 If year divisible by 4 then it will be leap year.
 365 days or 52 weeks and 1 day = 1 ordinary year
 366 days or 52 weeks and 2 days = 1 leap year
 A decade has period of 10 years.
 A century has period of 100 years.