Measures and time · Ages 8–9

The 24-hour clock worksheet

Part of: Seconds, the 24-hour clock and timetables

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Measures and time · Ages 8–9

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Write each answer in the space. For word problems, show your working and write a sentence answer.

13.A train leaves at 18:00. On the 12-hour clock, what time p.m. is that? Give the hour.
Working:
Answer:
14.A train leaves at 15:00. On the 12-hour clock, what time p.m. is that? Give the hour.
Working:
Answer:
15.A shopping centre is open every day from 09:00 to 22:00. How many hours is it open each day?
Working:
Answer:
16.A film starts at 6 p.m. sharp. On the 24-hour clock, what hour does it start at?
Working:
Answer:
17.A film starts at 5 p.m. sharp. On the 24-hour clock, what hour does it start at?
Working:
Answer:
18.A shopping centre is open every day from 09:00 to 23:00. How many hours is it open each day?
Working:
Answer:

Show the answers and working

The 24-hour clock worksheet: Answers and working

1. 8 a.m. = 8:00
8 a.m.: morning times stay as they are, no 12 added → 8:00 (written 08:00)
2. 7 p.m. = 19:00
7 p.m.: afternoon hours gain 12, 7 + 12 = 19 → 19:00
3. 5 p.m. = 17:00
5 p.m.: afternoon hours gain 12, 5 + 12 = 17 → 17:00
4. 10 p.m. = 22:00
10 p.m.: afternoon hours gain 12, 10 + 12 = 22 → 22:00
5. 20:00 = 8 p.m.
20:00: 13:00 to 23:00 lose 12 to give the p.m. hour, 20 − 12 = 8 → 8 p.m.
6. 3 a.m. = 3:00
3 a.m.: morning times stay as they are, no 12 added → 3:00 (written 03:00)
7. 9 a.m. = 9:00
9 a.m.: morning times stay as they are, no 12 added → 9:00 (written 09:00)
8. 10 a.m. = 10:00
10 a.m.: morning times stay as they are, no 12 added → 10:00 (written 10:00)
9. 2 a.m. = 2:00
2 a.m.: morning times stay as they are, no 12 added → 2:00 (written 02:00)
10. 13:00 = 1 p.m.
13:00: 13:00 to 23:00 lose 12 to give the p.m. hour, 13 − 12 = 1 → 1 p.m.
11. 7 a.m. = 7:00
7 a.m.: morning times stay as they are, no 12 added → 7:00 (written 07:00)
12. 4 a.m. = 4:00
4 a.m.: morning times stay as they are, no 12 added → 4:00 (written 04:00)

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. A train leaves at 18:00. On the 12-hour clock, what time p.m. is that? Give the hour. (Answer: 6 p.m.)
18 − 12 = 6
14. A train leaves at 15:00. On the 12-hour clock, what time p.m. is that? Give the hour. (Answer: 3 p.m.)
15 − 12 = 3
15. A shopping centre is open every day from 09:00 to 22:00. How many hours is it open each day? (Answer: 13 hours)
22 − 9 = 13
16. A film starts at 6 p.m. sharp. On the 24-hour clock, what hour does it start at? (Answer: 18:00)
6 + 12 = 18
17. A film starts at 5 p.m. sharp. On the 24-hour clock, what hour does it start at? (Answer: 17:00)
5 + 12 = 17
18. A shopping centre is open every day from 09:00 to 23:00. How many hours is it open each day? (Answer: 14 hours)
23 − 9 = 14

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