Grade 4 The 24-Hour Clock Worksheets
Change times between the am/pm clock and the 24-hour clock.
Every sheet below is generated fresh with a matching answer key. Pick one of the three levels, preview it, and print or download the PDF — no account, no watermark. For the other grade 4 time skills, see all time worksheets.
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Time · Grade 4
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Grade 4 · 3 pages · A4What each level generates
Grade 4 the 24-hour clock — the exact skill behind each difficulty setting, straight from the generator.
- Level 1Afternoon and evening times
- Level 2Morning, noon and midnight
- Level 3Calculate on the 24-hour clock
Grade levels follow the progression common to most English-language curricula — not one specific national curriculum. Every level shows exactly what it generates, so you can check the fit with your own program. See the full scope & sequence →
More Grade 4 time skills
Each one generates a different kind of question, with its own three levels and answer key.
- Elapsed Time in Hours and MinutesWork out how long something lasts, in hours and minutes.
- Later TimesCount forward from a time to work out when something finishes.
- Earlier TimesCount back from a time to work out when something started.
- Two-Step TimesWork out the time after two activities, one straight after the other.
- Units of TimeConvert between seconds, minutes, hours, days, weeks, months and years.
- Calendar and DatesDays of the week, months of the year and working out dates.
Frequently asked questions
▸What time topics are covered in Grade 4?
Durations written in hours and minutes, reading and calculating with the 24-hour clock, and adding a length of time to a clock time so that it crosses noon or midnight. Elapsed Time in Hours and Minutes, The 24-Hour Clock and Later Times take those three in turn, each on its own sheet.
▸How do you convert to the 24-hour clock?
Morning times keep the same hour with a leading zero, so 7:45 am is 07:45. From 1:00 pm onwards, add twelve to the hour, so 4:20 pm becomes 16:20. Midnight is 00:00 and midday is 12:00.
▸How do you work out a duration that passes midday?
Split the duration at 12:00. Find how long it is from the start time to noon, take that off the total, and add whatever is left to 12:00. A start of 10:35 am with 3 hours 50 minutes gives 1 hour 25 minutes to noon and 2 hours 25 minutes after it, so it finishes at 2:25 pm.
▸Why should answers be in hours and minutes rather than minutes?
Because that is how timetables, journeys and school days are described, and because it stops children treating an hour as if it had a hundred minutes. Grade 3 sheets answer in minutes; Grade 4 is the year the two-unit answer becomes the standard.
▸Can I use these sheets for timetable practice?
Yes. The Calculate on the 24-hour clock level of The 24-Hour Clock is built from journeys and events with a start time and a duration, the start time and the answer both on 24-hour readings, which is the same reading a bus or train timetable asks for. Press Shuffle for a fresh set at the same level.