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.How many hours are there from 11:00 to 21:00?
- 2.Write 8:30 a.m. in 24-hour time. (a) 20:30 (b) 10:30 (c) 08:30
- 3.What is 16:30 in 12-hour time? (a) 4:30 a.m. (b) 4:30 p.m. (c) 6:30 p.m.
- 4.A film is 3 hours 10 minutes long. How many minutes is that?
- 5.A film is 3 hours 55 minutes long. How many minutes is that?
- 6.A train leaves at 16:15 and reaches at 17:20. How long is the journey (in minutes)?
- 7.Write 6:45 a.m. in 24-hour time. (a) 18:45 (b) 06:45 (c) 08:45
- 8.How many hours are there from 05:00 to 19:00?
- 9.A train leaves at 08:10 and reaches at 10:30. How long is the journey (in minutes)?
- 10.A match starts at 13:45 and lasts 1 hour. At what time does it end? (a) 15:45 (b) 14:45 (c) 13:45
- 11.What is 08:35 in 12-hour time? (a) 8:35 p.m. (b) 8:35 a.m. (c) 10:35 a.m.
- 12.Write 9:55 a.m. in 24-hour time. (a) 09:55 (b) 11:55 (c) 21:55
- 13.Write 8:20 p.m. in 24-hour time. (a) 20:20 (b) 08:20 (c) 22:20
- 14.A train leaves at 12:10 and reaches at 12:50. How long is the journey (in minutes)?
- 15.A train leaves at 18:40 and reaches at 21:50. How long is the journey (in minutes)?
- 16.A match starts at 11:45 and lasts 2 hours 5 minutes. At what time does it end? (a) 13:50 (b) 14:50 (c) 12:50
- 17.A match starts at 15:40 and lasts 2 hours 10 minutes. At what time does it end? (a) 17:50 (b) 18:50 (c) 16:50
- 18.How many hours are there from 09:00 to 17:00?
- 19.A film is 4 hours 15 minutes long. How many minutes is that?
- 20.A train leaves at 19:40 and reaches at 21:25. How long is the journey (in minutes)?
- 21.A match starts at 18:40 and lasts 2 hours 5 minutes. At what time does it end? (a) 21:45 (b) 20:45 (c) 19:45
- 22.A train leaves at 19:40 and reaches at 23:00. How long is the journey (in minutes)?
- 23.A match starts at 08:55 and lasts 3 hours 30 minutes. At what time does it end? (a) 11:25 (b) 13:25 (c) 12:25
- 24.A film is 3 hours 50 minutes long. How many minutes is that?
- 25.How many hours are there from 07:00 to 15:00?
- 26.What is 15:35 in 12-hour time? (a) 3:35 p.m. (b) 5:35 p.m. (c) 3:35 a.m.
- 27.Write 2:20 a.m. in 24-hour time. (a) 14:20 (b) 04:20 (c) 02:20
- 28.How many hours are there from 10:00 to 15:00?
- 29.A film is 3 hours 25 minutes long. How many minutes is that?
- 30.How many hours are there from 11:00 to 20:00?
- 31.Write 5:45 p.m. in 24-hour time. (a) 05:45 (b) 17:45 (c) 19:45
- 32.What is 22:05 in 12-hour time? (a) 12:05 p.m. (b) 10:05 a.m. (c) 10:05 p.m.
- 33.What is 20:20 in 12-hour time? (a) 8:20 p.m. (b) 10:20 p.m. (c) 8:20 a.m.
- 34.Write 1:20 a.m. in 24-hour time. (a) 03:20 (b) 01:20 (c) 13:20
- 35.A match starts at 15:35 and lasts 2 hours 20 minutes. At what time does it end? (a) 17:55 (b) 18:55 (c) 16:55
- 36.Write 4:50 a.m. in 24-hour time. (a) 06:50 (b) 16:50 (c) 04:50
- 37.How many hours are there from 10:00 to 16:00?
- 38.What is 01:10 in 12-hour time? (a) 3:10 a.m. (b) 1:10 p.m. (c) 1:10 a.m.
- 39.What is 16:40 in 12-hour time? (a) 4:40 a.m. (b) 4:40 p.m. (c) 6:40 p.m.
- 40.A match starts at 10:15 and lasts 4 hours 50 minutes. At what time does it end? (a) 14:05 (b) 16:05 (c) 15:05
Answer key
- 10
- 08:30
- 4:30 p.m.
- 190
- 235
- 65
- 06:45
- 14
- 140
- 14:45
- 8:35 a.m.
- 09:55
- 20:20
- 40
- 190
- 13:50
- 17:50
- 8
- 255
- 105
- 20:45
- 200
- 12:25
- 230
- 8
- 3:35 p.m.
- 02:20
- 5
- 205
- 9
- 17:45
- 10:05 p.m.
- 8:20 p.m.
- 01:20
- 17:55
- 04:50
- 6
- 1:10 a.m.
- 4:40 p.m.
- 15:05
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