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Time and Clocks Test

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Time and Clocks Test

Show your working for problems that need more than one step. Write units with your answers. Total: 40 marks.

Converting time

Use 60 minutes = 1 hour and 60 seconds = 1 minute.

1.Convert 6 hours into minutes.

2.How many minutes are in 1 hour and 35 minutes?

3.Write 215 minutes as hours and minutes.

4.A training video runs for 3 minutes and 25 seconds. How many seconds long is it?

5.Express 185 seconds in minutes and seconds.

6.How many seconds are there in 2 hours?

Elapsed time

Work out how much time passes or what the finishing time will be.

7.A library opens at 9:15 am and closes at 3:45 pm. How long is it open?

8.Isla began practising piano at 4:35 pm and finished at 5:20 pm. How long did he practise?

9.A ferry leaves at 10:48 am and reaches the island at 11:36 am. How long is the journey?

10.A pie goes into the oven at 1:25 pm and bakes for 1 hour and 20 minutes. At what time should it come out?

11.A cycling lesson starts at 2:40 pm and ends at 4:05 pm. How many minutes does it last?

12.A concert begins at 11:30 am and goes for 2 hours and 55 minutes. What time does it finish?

Clock reasoning

For mirror questions, imagine a standard analogue clock reflected left to right. The reflected time and actual time add to 12:00 (or 11:60 when borrowing minutes).

13.An analogue clock's reflection in a mirror appears to show 5:20. What time is the clock actually showing?

14.An analogue clock's reflection in a mirror appears to show 10:35. What time is the clock actually showing?

15.A clock shows 8:25. What time would its left-to-right mirror reflection show?

16.A clock is 12 minutes fast and displays 6:18 pm. What is the correct time?

17.A clock is 8 minutes slow and displays 7:52 am. What is the correct time?

18.A watch is 10 minutes fast and shows 9:05 am. A bus leaves at 9:00 am. Has the bus already left? Explain using the correct time.

19.A clock gains 4 minutes every real hour. It is correct at 7:00 am. What time will it display when the real time is 10:00 am?

Time puzzles

Use careful reasoning. Include working where appropriate.

20.How many complete turns does the minute hand make in 18 hours?

21.At 6:00, the minute hand points to 12 and the hour hand points to 6. What is the smaller angle between the hands?

22.Today is Monday. What day of the week will it be in 45 days?

23.Ari sleeps from 9:15 pm until 6:45 am. Bea sleeps for 560 minutes. Who sleeps longer, and by how many minutes?

24.Using a four-digit digital display in 24-hour time, 13:31 reads the same forwards and backwards. What is the next time after 13:31 that has this property?

25.At noon, two accurate clocks are adjusted. Clock A gains 3 minutes each hour, while Clock B loses 2 minutes each hour. After how many hours will Clock A be 20 minutes ahead of Clock B?