NumihanaAn event starts at 9:30 and ends at 9:50 (same day). How many minutes does it last?
Answer: ________________
LEARN, PRINT & PRACTISE
Calculate elapsed time.
Calculate the interval between two times, including an explicit next-day endpoint.
Numihana · England Year 2
Calculate elapsed time
Practice sheet
Name: ______________
Date: ______________
Calculate the interval between two times, including an explicit next-day endpoint.
An event starts at 9:20 and ends at 9:30 (same day). How many minutes does it last?
Answer: ________________
An event starts at 9:10 and ends at 9:25 (same day). How many minutes does it last?
Answer: ________________
An event starts at 9:10 and ends at 9:40 (same day). How many minutes does it last?
Answer: ________________
An event starts at 9:30 and ends at 9:55 (same day). How many minutes does it last?
Answer: ________________
An event starts at 9:00 and ends at 9:10 (same day). How many minutes does it last?
Answer: ________________
Numihana · England Year 2
Calculate elapsed time
Answer key
Name: ______________
Date: ______________
Calculate the interval between two times, including an explicit next-day endpoint.
An event starts at 9:30 and ends at 9:50 (same day). How many minutes does it last?
Answer: 20
An event starts at 9:20 and ends at 9:30 (same day). How many minutes does it last?
Answer: 10
An event starts at 9:10 and ends at 9:25 (same day). How many minutes does it last?
Answer: 15
An event starts at 9:10 and ends at 9:40 (same day). How many minutes does it last?
Answer: 30
An event starts at 9:30 and ends at 9:55 (same day). How many minutes does it last?
Answer: 25
An event starts at 9:00 and ends at 9:10 (same day). How many minutes does it last?
Answer: 10
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The skill behind this activity
Calculate the interval between two times, including an explicit next-day endpoint.
Department for Education: mathematics programmes of study ↗
Year 2 → Measurement · Selected statutory skill. Pack 2.2.0 · source checked 2026-10-12.
For teachers and parents
Count to the next hour, count complete hours, then count the remaining minutes. Use 60 minutes per hour and include a full-day crossing only when the question explicitly says next day.
A common slip
Clock minutes use groups of sixty. Treating 1 hour 30 minutes as 1.30 hours gives the wrong interval.
Worked example
An event starts at 9:00 and ends at 9:15 (same day). How many minutes does it last?
Answer: 15
Count to the next hour, count complete hours, then count the remaining minutes. Use 60 minutes per hour and include a full-day crossing only when the question explicitly says next day.