Date & Time Tools
Time Duration Calculator
Find the duration between two date-times.
FreeNo sign-upWorks in your browser
Duration
8h 30m
Total hours
8.5
Total minutes
510
About the Time Duration Calculator
Enter a start and end date-and-time and the calculator returns the duration between them in days, hours, and minutes, plus the totals in hours and minutes. It's ideal for timing shifts, events, projects, and anything that spans across days.
How to use the Time Duration Calculator
- 1Enter your a start and end date-time.
- 2Read the result instantly — it recalculates as you type.
- 3Adjust the numbers to model different scenarios.
Frequently asked questions
How do I find the time between two times?
Enter both the start and end (with dates) and the calculator subtracts them into days, hours, and minutes.
Does it handle overnight spans?
Yes — because you enter full dates and times, durations that cross midnight or span multiple days are handled correctly.