Date & TimeUpdated 2026-04-12
Time Duration Calculator
Enter start time, end time, and break minutes to calculate a time duration.
Result
Duration minutes
480
Duration hours
8.00
Formula Explanation
Duration minutes = end time - start time - break minutes. If end time is earlier, the calculator assumes an overnight span.
How to Use
- Enter start hour and minute in 24-hour time.
- Enter end hour and minute.
- Subtract optional break minutes.
Examples
Example: 9:00 to 17:30 with a 30-minute break is 8.0 hours.
FAQ
Does it support overnight shifts?
Yes. If the end time is earlier than the start time, it treats the end time as the next day.
Can break time be zero?
Yes. Enter 0 if no break should be subtracted.