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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 900 · 40 sums
TalentJR

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

Answer key

  1. 9:35 p.m.
  2. 6:25 p.m.
  3. 150
  4. 08:05
  5. 15:10
  6. 170
  7. 13:35
  8. 10:45
  9. 01:35
  10. 295
  11. 3:00 p.m.
  12. 100
  13. 12:10
  14. 50
  15. 17:30
  16. 95
  17. 20:35
  18. 45
  19. 220
  20. 75
  21. 07:20
  22. 13:05
  23. 10
  24. 14:50
  25. 09:40
  26. 10:00 p.m.
  27. 55
  28. 7:00 a.m.
  29. 10:30
  30. 16:35
  31. 17:50
  32. 09:55
  33. 7
  34. 200
  35. 5:15 a.m.
  36. 120
  37. 180
  38. 100
  39. 10
  40. 03:10

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