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Class 4 Maths Worksheet: 24-Hour Clock

Maths worksheets lesson 30: The 24-hour clock and time taken · Set 973 · 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.Write 1:00 a.m. in 24-hour time. (a) 01:00 (b) 03:00 (c) 13:00
  2. 2.How many hours are there from 09:00 to 12:00?
  3. 3.A match starts at 09:30 and lasts 1 hour. At what time does it end? (a) 10:30 (b) 09:30 (c) 11:30
  4. 4.What is 02:05 in 12-hour time? (a) 2:05 p.m. (b) 2:05 a.m. (c) 4:05 a.m.
  5. 5.How many hours are there from 12:00 to 15:00?
  6. 6.A train leaves at 13:00 and reaches at 15:45. How long is the journey (in minutes)?
  7. 7.A film is 4 hours 25 minutes long. How many minutes is that?
  8. 8.A film is 2 hours 15 minutes long. How many minutes is that?
  9. 9.What is 20:30 in 12-hour time? (a) 8:30 p.m. (b) 8:30 a.m. (c) 10:30 p.m.
  10. 10.A film is 1 hour 35 minutes long. How many minutes is that?
  11. 11.Write 10:50 a.m. in 24-hour time. (a) 12:50 (b) 10:50 (c) 22:50
  12. 12.Write 6:10 a.m. in 24-hour time. (a) 06:10 (b) 18:10 (c) 08:10
  13. 13.A train leaves at 08:20 and reaches at 10:10. How long is the journey (in minutes)?
  14. 14.What is 16:05 in 12-hour time? (a) 4:05 a.m. (b) 6:05 p.m. (c) 4:05 p.m.
  15. 15.What is 01:20 in 12-hour time? (a) 3:20 a.m. (b) 1:20 a.m. (c) 1:20 p.m.
  16. 16.Write 10:40 p.m. in 24-hour time. (a) 22:40 (b) 10:40 (c) 00:40
  17. 17.How many hours are there from 09:00 to 15:00?
  18. 18.A film is 4 hours 20 minutes long. How many minutes is that?
  19. 19.A match starts at 11:05 and lasts 3 hours 55 minutes. At what time does it end? (a) 15:00 (b) 14:00 (c) 16:00
  20. 20.Write 10:30 p.m. in 24-hour time. (a) 22:30 (b) 10:30 (c) 00:30
  21. 21.What is 05:55 in 12-hour time? (a) 5:55 a.m. (b) 7:55 a.m. (c) 5:55 p.m.
  22. 22.A match starts at 17:35 and lasts 4 hours 45 minutes. At what time does it end? (a) 21:20 (b) 23:20 (c) 22:20
  23. 23.What is 01:30 in 12-hour time? (a) 1:30 a.m. (b) 3:30 a.m. (c) 1:30 p.m.
  24. 24.What is 02:40 in 12-hour time? (a) 2:40 p.m. (b) 2:40 a.m. (c) 4:40 a.m.
  25. 25.A train leaves at 12:05 and reaches at 14:25. How long is the journey (in minutes)?
  26. 26.How many hours are there from 05:00 to 18:00?
  27. 27.A train leaves at 14:55 and reaches at 15:35. How long is the journey (in minutes)?
  28. 28.A train leaves at 15:35 and reaches at 18:40. How long is the journey (in minutes)?
  29. 29.Write 7:50 p.m. in 24-hour time. (a) 19:50 (b) 07:50 (c) 21:50
  30. 30.Write 9:50 p.m. in 24-hour time. (a) 09:50 (b) 23:50 (c) 21:50
  31. 31.Write 6:45 a.m. in 24-hour time. (a) 06:45 (b) 18:45 (c) 08:45
  32. 32.What is 08:30 in 12-hour time? (a) 8:30 p.m. (b) 8:30 a.m. (c) 10:30 a.m.
  33. 33.A match starts at 15:30 and lasts 2 hours 10 minutes. At what time does it end? (a) 18:40 (b) 16:40 (c) 17:40
  34. 34.Write 4:40 p.m. in 24-hour time. (a) 04:40 (b) 16:40 (c) 18:40
  35. 35.Write 7:35 a.m. in 24-hour time. (a) 09:35 (b) 07:35 (c) 19:35
  36. 36.A film is 1 hour 30 minutes long. How many minutes is that?
  37. 37.A film is 4 hours 50 minutes long. How many minutes is that?
  38. 38.A train leaves at 10:00 and reaches at 11:40. How long is the journey (in minutes)?
  39. 39.Write 2:35 p.m. in 24-hour time. (a) 16:35 (b) 14:35 (c) 02:35
  40. 40.A train leaves at 11:20 and reaches at 13:20. How long is the journey (in minutes)?

Answer key

  1. 01:00
  2. 3
  3. 10:30
  4. 2:05 a.m.
  5. 3
  6. 165
  7. 265
  8. 135
  9. 8:30 p.m.
  10. 95
  11. 10:50
  12. 06:10
  13. 110
  14. 4:05 p.m.
  15. 1:20 a.m.
  16. 22:40
  17. 6
  18. 260
  19. 15:00
  20. 22:30
  21. 5:55 a.m.
  22. 22:20
  23. 1:30 a.m.
  24. 2:40 a.m.
  25. 140
  26. 13
  27. 40
  28. 185
  29. 19:50
  30. 21:50
  31. 06:45
  32. 8:30 a.m.
  33. 17:40
  34. 16:40
  35. 07:35
  36. 90
  37. 290
  38. 100
  39. 14:35
  40. 120

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