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Grade 4 Math — Time and how long things last

Work out how long something lasts, including when it runs past the hour, and find a start or finish time from a duration.

Name: ________________________

  1. 1.How many minutes are there in two and a half hours?

  2. 2.A shop opens at 8:30 am and closes at 8:30 pm. How many hours is it open?

  3. 3.How many minutes are there in 3 hours?

  4. 4.Sort each activity by whether it takes less than an hour or more than an hour.

    Groups: Less than an hour · More than an hour

    • A match of 2 hours
    • A lesson of 45 minutes
    • A train journey of 3 hours
    • A walk of 25 minutes
    • A swim of 55 minutes
    • A film of 90 minutes

  5. 5.A lesson starts at 9:20 am and ends at 10:05 am. How many minutes long is it?

  6. 6.A bus journey takes 35 minutes and must arrive at 8:15 am. At what time must the bus leave? Write it like 7:05.

  7. 7.Put these journeys in order, shortest first.

    • 8:00 am to 11:30 am
    • 2:10 pm to 2:55 pm
    • 1:15 pm to 3:00 pm
    • 9:00 am to 9:25 am
    • 6:30 am to 7:40 am

  8. 8.A train leaves at 6:50 am and arrives at 9:20 am. How long is the journey, in minutes?

Answer key — Grade 4 Math — Time and how long things last

  1. 1. 150
  2. 2. 12
  3. 3. 180
  4. 4. A walk of 25 minutes → Less than an hour; A film of 90 minutes → More than an hour; A lesson of 45 minutes → Less than an hour; A train journey of 3 hours → More than an hour; A swim of 55 minutes → Less than an hour; A match of 2 hours → More than an hour
  5. 5. 45
  6. 6.
    • 7:40
    • 7.40
    • twenty to eight
    • 7:40 am
  7. 7. 1. 9:00 am to 9:25 am 2. 2:10 pm to 2:55 pm 3. 6:30 am to 7:40 am 4. 1:15 pm to 3:00 pm 5. 8:00 am to 11:30 am
  8. 8. 150