How to Convert a Start and Stop Time into a Time Interval - Elapsed Time - Free Worksheet

Sunday, July 6, 2025

 



Summary:

This video teaches how to calculate time intervals between a start time and an end time. It explains a step-by-step method:

Subtract the start time from the end time.

Subtract the hours.

Compare the minutes:

If the start minutes are less than or equal to the end minutes, subtract normally.

If the start minutes are greater, subtract 1 from the hour total, add 60 minutes to the end minutes, then subtract the start minutes.

Several examples are worked through, including:

Time intervals within the same a.m. or p.m. period.

A more challenging bonus example involving a time span from a.m. to p.m., which requires converting the p.m. time to 24-hour format by adding 12 to the hour.

Key takeaway: Always break time interval problems into manageable steps, and adjust for minute and a.m./p.m. differences when needed.

You may enjoy thisworksheet that compliments the video.

Free Time Intervals Worksheet

Time Intervals Answewr Key


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