Page 123 - Maths Class 04

d. 3 hours after 9:20 a.m. ________________

e. 2 hours after 5:05 a.m. ________________

f. 1 hour after 12 midnight ________________

5. Fill in the blanks with a.m. or p.m.

a. Aniket goes to school at 7:00 ________________ .

b. Father returns from office at 7:30 ________________ .
c. Rohan has breakfast at 7:30 ________________ .

d. Ruby wakes up at 5:45 ________________ .

e. Deepa has dinner at 9:30 ________________ .

Date Sunrise Sunset

Keep a record of the sunrise and sunset
time in your city from the newspaper of

every Sunday for a month. What do you
find ? Is there any change ?

Time Duration

Now, Let’s see a timeline for a day.

a.m. p.m.
Midnight Today Midnight
Noon

Yesterday Tomorrow
6:00 a.m. 8:00 a.m. 2:00 p.m. 8:00 p.m. 9:00 p.m.
wake up go to school return dinner bed time
from school

Calculating the Time in Hours and Minutes.

If we know when an activity started and when it was over, we can calculate
the duration of the activity.

Example : Mohit left home at 8:45 a.m. and reached his friend’s house at

9:30 a.m. How long did Mohit take to reach his friend's house ?

Solution : 8:45 a.m. 15 min 9:00 a.m. 30 min 9:30 a.m.

So, Mohit takes 15 minutes + 30 minutes = 45 minutes to reach

his friend’s house.

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