Grade 4 · Year 5 · Class 4 · ages 9–10 · Measurement
12-hour and 24-hour time: Grade 4 practice
Changing between times with am and pm and the 24-hour clock. Eight questions at a time, instant feedback and a mastery score from 0 to 100.
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Right answers raise your mastery score (more on harder questions) and wrong ones lower it a little. Your best score is saved on this device, and in your account if you log in.
The idea in one minute
For pm times add 12 to the hour (3 pm is 15:00). For 24-hour times above 12:59 take 12 away and write pm. 00:xx is 12 am.
Try these on paper first
One question at each level. Tap a question to see the answer.
Easy Write 15:00 in 12-hour time:
Answer: 3:00 pm
Medium Write 11:30 in 12-hour time:
Answer: 11:30 am
Challenge Write 12:45 pm in 24-hour time:
Answer: 12:45
More ways to practise 12-hour and 24-hour time
- Printable 12-hour and 24-hour time worksheet with an answer key (new questions every time)
- All Grade 4 practice · Measurement and time worksheets
Related skills
- Converting metric units (Grade 4)
- Time taken (elapsed time) (Grade 4)
- Hours and minutes (Grade 3)
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FAQ
12-hour and 24-hour time: questions
What grade is 12-hour and 24-hour time?
It is usually taught in Grade 4 (Year 5 in England, Class 4 in India, ages 9–10), though schools and countries differ. Try the grade above or below if it feels too hard or too easy.
What does a 12-hour and 24-hour time question look like?
For example: "Write 11:30 in 12-hour time:" The answer is 11:30 am. For pm times add 12 to the hour (3 pm is 15:00). For 24-hour times above 12:59 take 12 away and write pm. 00:xx is 12 am.
What should I learn before and after 12-hour and 24-hour time?
Before it, try time taken (elapsed time) (Grade 4). After it, move on to area of rectangles and squares (Grade 4).
How can I get better at 12-hour and 24-hour time?
For pm times add 12 to the hour (3 pm is 15:00). For 24-hour times above 12:59 take 12 away and write pm. 00:xx is 12 am. Practise a little every day, read the hint after each wrong answer, and use the printable worksheet when you want to write it out.
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