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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 203 · 40 sums
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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. 1.Write 6:35 a.m. in 24-hour time. (a) 08:35 (b) 18:35 (c) 06:35
  2. 2.What is 01:05 in 12-hour time? (a) 3:05 a.m. (b) 1:05 p.m. (c) 1:05 a.m.
  3. 3.How many hours are there from 07:00 to 12:00?
  4. 4.A train leaves at 16:00 and reaches at 16:40. How long is the journey (in minutes)?
  5. 5.What is 18:10 in 12-hour time? (a) 6:10 a.m. (b) 6:10 p.m. (c) 8:10 p.m.
  6. 6.Write 1:45 a.m. in 24-hour time. (a) 01:45 (b) 03:45 (c) 13:45
  7. 7.What is 01:25 in 12-hour time? (a) 1:25 a.m. (b) 1:25 p.m. (c) 3:25 a.m.
  8. 8.A film is 3 hours 5 minutes long. How many minutes is that?
  9. 9.Write 8:30 p.m. in 24-hour time. (a) 08:30 (b) 20:30 (c) 22:30
  10. 10.How many hours are there from 09:00 to 12:00?
  11. 11.What is 11:30 in 12-hour time? (a) 1:30 a.m. (b) 11:30 a.m. (c) 11:30 p.m.
  12. 12.A film is 1 hour 20 minutes long. How many minutes is that?
  13. 13.What is 13:25 in 12-hour time? (a) 1:25 a.m. (b) 3:25 p.m. (c) 1:25 p.m.
  14. 14.A match starts at 10:50 and lasts 3 hours. At what time does it end? (a) 12:50 (b) 14:50 (c) 13:50
  15. 15.How many hours are there from 10:00 to 14:00?
  16. 16.Write 2:35 p.m. in 24-hour time. (a) 02:35 (b) 16:35 (c) 14:35
  17. 17.Write 3:50 a.m. in 24-hour time. (a) 05:50 (b) 03:50 (c) 15:50
  18. 18.A train leaves at 07:15 and reaches at 09:30. How long is the journey (in minutes)?
  19. 19.How many hours are there from 09:00 to 22:00?
  20. 20.Write 6:45 p.m. in 24-hour time. (a) 20:45 (b) 06:45 (c) 18:45
  21. 21.Write 10:35 a.m. in 24-hour time. (a) 10:35 (b) 22:35 (c) 12:35
  22. 22.Write 10:35 p.m. in 24-hour time. (a) 22:35 (b) 00:35 (c) 10:35
  23. 23.A train leaves at 18:00 and reaches at 20:15. How long is the journey (in minutes)?
  24. 24.What is 14:05 in 12-hour time? (a) 2:05 p.m. (b) 4:05 p.m. (c) 2:05 a.m.
  25. 25.A match starts at 12:35 and lasts 3 hours 20 minutes. At what time does it end? (a) 16:55 (b) 15:55 (c) 14:55
  26. 26.What is 04:55 in 12-hour time? (a) 4:55 a.m. (b) 6:55 a.m. (c) 4:55 p.m.
  27. 27.What is 13:15 in 12-hour time? (a) 1:15 a.m. (b) 3:15 p.m. (c) 1:15 p.m.
  28. 28.A train leaves at 15:45 and reaches at 16:35. How long is the journey (in minutes)?
  29. 29.How many hours are there from 06:00 to 16:00?
  30. 30.A match starts at 14:05 and lasts 3 hours 30 minutes. At what time does it end? (a) 17:35 (b) 16:35 (c) 18:35
  31. 31.What is 11:40 in 12-hour time? (a) 11:40 p.m. (b) 11:40 a.m. (c) 1:40 a.m.
  32. 32.What is 06:55 in 12-hour time? (a) 8:55 a.m. (b) 6:55 a.m. (c) 6:55 p.m.
  33. 33.Write 6:15 p.m. in 24-hour time. (a) 20:15 (b) 06:15 (c) 18:15
  34. 34.A match starts at 09:50 and lasts 2 hours 30 minutes. At what time does it end? (a) 11:20 (b) 12:20 (c) 13:20
  35. 35.A match starts at 07:30 and lasts 2 hours 5 minutes. At what time does it end? (a) 10:35 (b) 08:35 (c) 09:35
  36. 36.A match starts at 06:00 and lasts 1 hour 5 minutes. At what time does it end? (a) 08:05 (b) 06:05 (c) 07:05
  37. 37.A train leaves at 16:00 and reaches at 18:05. How long is the journey (in minutes)?
  38. 38.A film is 3 hours 20 minutes long. How many minutes is that?
  39. 39.What is 07:55 in 12-hour time? (a) 7:55 p.m. (b) 9:55 a.m. (c) 7:55 a.m.
  40. 40.How many hours are there from 11:00 to 19:00?

Answer key

  1. 06:35
  2. 1:05 a.m.
  3. 5
  4. 40
  5. 6:10 p.m.
  6. 01:45
  7. 1:25 a.m.
  8. 185
  9. 20:30
  10. 3
  11. 11:30 a.m.
  12. 80
  13. 1:25 p.m.
  14. 13:50
  15. 4
  16. 14:35
  17. 03:50
  18. 135
  19. 13
  20. 18:45
  21. 10:35
  22. 22:35
  23. 135
  24. 2:05 p.m.
  25. 15:55
  26. 4:55 a.m.
  27. 1:15 p.m.
  28. 50
  29. 10
  30. 17:35
  31. 11:40 a.m.
  32. 6:55 a.m.
  33. 18:15
  34. 12:20
  35. 09:35
  36. 07:05
  37. 125
  38. 200
  39. 7:55 a.m.
  40. 8

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