Duration Calculator
Hours, minutes, and seconds between two times.
Duration
08:30:00
Total hours
8.50
Total minutes
510
Total seconds
30,600
Total days
0.354
About
Enter a start and end time and get the duration broken down. Optionally span multiple days. Useful for timesheets, billing, debugging schedules, or figuring out how long the meeting actually was.
How to use
- Pick start and end (with date if it crosses midnight).
- Read the duration.
FAQ
Does this handle DST changes?+
Yes. If the duration crosses a daylight saving transition, the tool accounts for the lost or gained hour.