Class 4 Maths Worksheet: 24-Hour Clock
The method (Add 12 after noon): a.m. → keep the hour, written with 2 digits: 07:15. p.m. → add 12 to the hour: 3:35 p.m. = 15:35. 24-hour back to 12-hour: hour more than 12 → take away 12 and say p.m. Time taken: count whole hours, then minutes. 1 hour = 60 minutes.
NameDateTime takenScore ___ / 40
- 1.Write 10:00 p.m. in 24-hour time. (a) 00:00 (b) 10:00 (c) 22:00
- 2.How many hours are there from 07:00 to 22:00?
- 3.Write 10:35 p.m. in 24-hour time. (a) 10:35 (b) 22:35 (c) 00:35
- 4.Write 6:45 a.m. in 24-hour time. (a) 18:45 (b) 06:45 (c) 08:45
- 5.Write 8:15 p.m. in 24-hour time. (a) 08:15 (b) 20:15 (c) 22:15
- 6.A train leaves at 19:25 and reaches at 20:05. How long is the journey (in minutes)?
- 7.A train leaves at 09:50 and reaches at 10:30. How long is the journey (in minutes)?
- 8.A match starts at 09:00 and lasts 1 hour 5 minutes. At what time does it end? (a) 11:05 (b) 10:05 (c) 09:05
- 9.A film is 3 hours 5 minutes long. How many minutes is that?
- 10.How many hours are there from 10:00 to 12:00?
- 11.What is 10:15 in 12-hour time? (a) 10:15 a.m. (b) 12:15 a.m. (c) 10:15 p.m.
- 12.What is 22:25 in 12-hour time? (a) 10:25 a.m. (b) 12:25 p.m. (c) 10:25 p.m.
- 13.A film is 1 hour 25 minutes long. How many minutes is that?
- 14.A match starts at 06:10 and lasts 4 hours 10 minutes. At what time does it end? (a) 11:20 (b) 09:20 (c) 10:20
- 15.A train leaves at 10:05 and reaches at 11:55. How long is the journey (in minutes)?
- 16.What is 03:45 in 12-hour time? (a) 3:45 a.m. (b) 5:45 a.m. (c) 3:45 p.m.
- 17.What is 05:05 in 12-hour time? (a) 5:05 a.m. (b) 7:05 a.m. (c) 5:05 p.m.
- 18.A match starts at 07:50 and lasts 3 hours 15 minutes. At what time does it end? (a) 12:05 (b) 11:05 (c) 10:05
- 19.A match starts at 12:50 and lasts 2 hours 5 minutes. At what time does it end? (a) 13:55 (b) 15:55 (c) 14:55
- 20.A match starts at 09:00 and lasts 4 hours 25 minutes. At what time does it end? (a) 13:25 (b) 12:25 (c) 14:25
- 21.A match starts at 14:35 and lasts 1 hour 40 minutes. At what time does it end? (a) 17:15 (b) 16:15 (c) 15:15
- 22.Write 5:30 a.m. in 24-hour time. (a) 17:30 (b) 07:30 (c) 05:30
- 23.A train leaves at 08:30 and reaches at 10:55. How long is the journey (in minutes)?
- 24.A train leaves at 06:00 and reaches at 08:10. How long is the journey (in minutes)?
- 25.A film is 1 hour 40 minutes long. How many minutes is that?
- 26.A train leaves at 12:00 and reaches at 12:50. How long is the journey (in minutes)?
- 27.A train leaves at 06:05 and reaches at 06:50. How long is the journey (in minutes)?
- 28.A train leaves at 11:30 and reaches at 12:50. How long is the journey (in minutes)?
- 29.What is 03:10 in 12-hour time? (a) 3:10 a.m. (b) 5:10 a.m. (c) 3:10 p.m.
- 30.What is 20:15 in 12-hour time? (a) 8:15 a.m. (b) 8:15 p.m. (c) 10:15 p.m.
- 31.Write 2:35 p.m. in 24-hour time. (a) 14:35 (b) 16:35 (c) 02:35
- 32.Write 2:10 a.m. in 24-hour time. (a) 14:10 (b) 02:10 (c) 04:10
- 33.A match starts at 13:25 and lasts 1 hour 55 minutes. At what time does it end? (a) 15:20 (b) 14:20 (c) 16:20
- 34.How many hours are there from 05:00 to 09:00?
- 35.Write 2:00 p.m. in 24-hour time. (a) 02:00 (b) 16:00 (c) 14:00
- 36.What is 03:20 in 12-hour time? (a) 5:20 a.m. (b) 3:20 a.m. (c) 3:20 p.m.
- 37.What is 04:35 in 12-hour time? (a) 6:35 a.m. (b) 4:35 a.m. (c) 4:35 p.m.
- 38.How many hours are there from 06:00 to 17:00?
- 39.What is 04:40 in 12-hour time? (a) 4:40 p.m. (b) 4:40 a.m. (c) 6:40 a.m.
- 40.Write 9:40 a.m. in 24-hour time. (a) 21:40 (b) 11:40 (c) 09:40
Answer key
- 22:00
- 15
- 22:35
- 06:45
- 20:15
- 40
- 40
- 10:05
- 185
- 2
- 10:15 a.m.
- 10:25 p.m.
- 85
- 10:20
- 110
- 3:45 a.m.
- 5:05 a.m.
- 11:05
- 14:55
- 13:25
- 16:15
- 05:30
- 145
- 130
- 100
- 50
- 45
- 80
- 3:10 a.m.
- 8:15 p.m.
- 14:35
- 02:10
- 15:20
- 4
- 14:00
- 3:20 a.m.
- 4:35 a.m.
- 11
- 4:40 a.m.
- 09:40
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