Date and time
Time duration
Find the duration between two local date-times in hours and minutes.
Your numbers
Both a decimal point and a comma work.
Result
32 h 30 min
Duration
- Hours
- 32.5
- Days
- 1.354167
How it works
Δt = end − start (local clock)
Using the calculator
Enter: Start date and time · End date and time. Calculation: Δt = end − start (local clock).
Worked input and result
Example: Start date and time = 2026-05-01T08:15; End date and time = 2026-05-02T09:45. Result: Total duration = 25 h 30 min (Hours: 25.5; Days: 1.0625).
Understanding the result
Calculates local clock time without time zones or daylight-saving adjustments. For overnight or multi-day intervals, enter the actual end date.
The difference is calculated between the entered date-time values. If they refer to different time zones or cross a daylight-saving transition, first convert them to the same time basis.