topic badge

10.02 Time intervals

Worksheet
Adding and subtracting time
1

Evaluate the following in hours and minutes:

a

11 hours - \, 43 minutes

b

11 hours 16 minutes - \, 5 hours

c

5 hours 10 minutes + \, 20 minutes

d

4 hours 10 minutes - \, 35 minutes

e

3 hours 3 minutes + \, 3 hours 29 minutes

f

3 hours 20 minutes - \, 2 hours 10 minutes

g

2 hours 50 minutes + \, 3 hours 40 minutes

h

6 hours 10 minutes - \, 2 hours 30 minutes

i

7 hours 59 minutes + \, 8 hours 11 minutes

j

10 hours 3 minutes - \, 7 hours 57 minutes

k

9 hours 43 minutes - \, 2 hours 29 minutes

l

12 hours 8 minutes - \, 3 hours 35 minutes

2

How many hours and minutes left until midnight if the time is 16:50?

3

Find the following times, expressing your answer in 24-hour time:

a

4 hours after 16:28

b

7 hours after 22:53

c

12 hours before 9:57

d

13 hours before 10:43

e

30 minutes after 9:30 am.

f

30 minutes after 11:40 pm.

g

9:30 am plus half an hour.

h

7:00 pm plus 24 minutes.

i

45 minutes after 11:20 am.

j

20 minutes after 3:50 pm.

k

10:30 am plus two and a half hours.

l

9:10 pm plus 63 minutes.

4

Find the 24-hour time and day after evaluating the following:

a

Saturday 13:15 - \, 15 hours 18 minutes

b

Thursday 13:20 + \, 21 hours 59 minutes

5

James went to a movie at 11:50 am. The movie went for 1 hour and 10 minutes. What time will be it when the movie finishes? Give your answer using 12-hour time.

6

Sharon starts watching a movie at half past eleven am, which goes for 2 hours and 30 minutes. What time will be it when the movie finishes? Give your answer using 12-hour time.

7

A train ride between two cities takes 9 hours and 57 minutes. On a train ride between these cities, if you leave one city at 23:44, at what time will you arrive at the other city? Give your answer in 24-hour time.

8

In a relay of four runners, Karen ran for 1:46, Janet ran for 1:18, Tania ran for 1:16 and Tina ran for 1:42. How long was their total time for the relay?

9

A taxi arrives at 17:28 at Melbourne. If the trip took 2 hours and 16 minutes, at what time did the taxi depart from Bendigo? Give your answer in 24-hour time.

10

Avril drives from Adelaide to Horsham. She departs at 6:25 am and drives for 2 hours and 12 minutes, then has a rest break for 20 minutes before driving for a further 2 hours and 30 minutes. At what time did Avril arive in Melbourne? Give your answer in 24-hour time.

11

Hugh plans to drive from Sydney to Brisbane. He plans to drive in four intervals of roughly 2 hours and 20 mintues, with a break of 15 minutes between each driving stretch. If he leaves at 10 am, what time should Hugh expect to arrive? Give your answer in 12-hour time.

Time between events
12

James leaves home at 2 pm and gets home at 5 pm. How many hours was James out?

13

Valentina starts work at 7 am and finishes work at 5:30 in the evening. How many hours and minutes is Valentina at work?

14

Luke starts school at 9 am and finishes at 3 pm. How many hours is Luke at school each day?

15

Ellie's family leaves her home at 9:17 am to visit her grandmother in a different state. She arrives at her grandmother's house at 3:17 pm. How long did the trip take?

16

A song clip starts playing at 7:55 pm and finished at 8:11 pm. How long is the song clip in minutes?

17

A taxi departs at 13:32 from Canberra and arrives at 20:14 at Melbourne. How long did the taxi take for the trip?

18

A match of hockey begins at 7:30 and finishes at 8:55. If the half-time break goes for 15 minutes, what is the duration of one half of hockey?

19

Noor drives to work at 8:05 am and during the day she has two short breaks of 25 minutes and a longer break for lunch of 55 minutes, before driving home and ariving at 7:15 pm. If the drive to and from work takes 35 minutes, how many hours and minutes does Noor work for during the day?

20

Lance plans to drive from Adelaide to Alice Springs. He decides to make the drive over two days with an overnight stay of 10 hours and total rest breaks of 3 and a half hours. If his plan anticipates he will leave Friday at 10 am and arrive Saturday at 3:00 pm, how much time is he expecting to spend driving in order to reach Alice Springs?

Sign up to access Worksheet
Get full access to our content with a Mathspace account

Outcomes

2.2.1.3

calculate time intervals, including time between, time ahead, time behind

What is Mathspace

About Mathspace