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\ 19-Nov-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

3. What time will it be:

a. 4 h 50 min after 7:30 p.m.? b. 6 h 30 min after 8:40 p.m.?
4. What time was it:

a. 3 h before 2:30 p.m.? b. 6 h 25 min before 4:15 p.m.?

5. Find the time interval between 7:25 a.m. and 3:10 p.m.

6. Solve the following word problems:

a. Prachi’s school starts at 8:45 a.m. and closes at 3:30 p.m. Find the working hours
of her school.
b. An office of a company opens at 9:30 a.m. and closes after 10 hours 30 minutes.

At what time does it close?
c. A bus leaves the bus stop at 6:30 p.m. and reaches its destination at 4:30 a.m.
the next day. Find the time duration of the journey.

d. A train left Vadodara at 4:40 p.m. on Monday and reached Guwahati on Thursday
at 12:30 p.m. Find the total duration of the journey.

e. Vijay joined a company on 8th August 2016 and left it on 3rd January 2024. How
long did he work for the company?
f. Jaya’s winter holidays were from 5th December 2024 to 12th February 2025. For

how many days was her school closed?
g. Kanav started teaching at the age of 22 years 7 months. Now, he is 50 years 2
months old. How long has he been teaching?

 The 24-hour clock tells time in hours using 4 digits—the first two digits from the left
show the hours and the last two digits show the minutes.

 Time between 12 midnight and 12 noon is denoted by a.m. (ante meridiem) and time
between 12 noon and 12 midnight is denoted by p.m. (post meridiem).

 Measures of time can be converted from one unit to another by using the relationships:
1 min = 60 s, 1 h = 60 min, 1 day = 24 h, 1 week = 7 days, 1 year = 12 months, etc.

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Time