Grade 5 · Math · Lesson 18

Time and Elapsed Time Problems

Elapsed time is the amount of time that passes between a start time and an end time. To find it, count up from the start in friendly hops — full hours first, then the leftover minutes. The same idea works in reverse to find an end time when you know the start and the duration.

What this lesson teaches

1Read times in hours and minutes from analog clocks and digital displays
2Find the elapsed time when given a start time and an end time
3Find the end time when given a start time and a duration
4Solve word problems involving AM, PM, and time across the noon or midnight boundary

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