Time Problems
Year 5 students solve problems involving time, including converting between units, calculating elapsed time, and reading timetables in 12-hour and 24-hour formats.
What You Need to Know
Key Concept Diagram
There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day
To find elapsed time, subtract the start time from the end time
24-hour time avoids am/pm: 13:00 is 1:00 pm, 09:00 is 9:00 am
Timetables and schedules use both 12-hour and 24-hour time in real life
Key Vocabulary
Elapsed time
The amount of time that passes between a start time and an end time
24-hour time
A time format using hours 00–23 with no am/pm distinction
Duration
The length of time an event lasts from start to finish
Convert
To change a measurement from one unit to another, e.g. minutes to hours
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
A train departs at 09:45 and arrives at 13:20. How long is the journey?
Question 2
What is 14:30 in 12-hour time?
Question 3
A movie starts at 7:15 pm and runs for 1 hour 50 minutes. When does it finish?
Key Concepts Summary
- ●There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day
- ●To find elapsed time, subtract the start time from the end time
- ●24-hour time avoids am/pm: 13:00 is 1:00 pm, 09:00 is 9:00 am
- ●Timetables and schedules use both 12-hour and 24-hour time in real life