This topic focuses on calculating negative elapsed time by determining how many hours and minutes earlier one clock is compared to another. This skill involves interpreting clock times, subtracting times, and presenting the result in a combination of hours and minutes. Each problem provides a pair of clock times, and the student is asked to find out how much earlier the second clock is compared to the first, with multiple-choice answers for each scenario. This allows students to practice their skills in time calculation and understanding durations.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.