Time Duration Calculator
Enter a start and end date with times to get the duration in days, hours, minutes and seconds.
Duration
4d 9h 30m
Total hours
105.5
Total minutes
6,330
Total seconds
379,800
In working days (8h)
13.19
How this was worked out
- Step 1Start = 2026-01-01 08:00
- Step 2End = 2026-01-05 17:30
- Step 3Difference = 379,800 seconds
Formula
Duration = end date/time − start date/time
Example
Input
1 Jan 08:00 → 5 Jan 17:30
Result
4 days 9 hours 30 minutes
Frequently asked questions
Yes — the times you enter are treated as your local time and the difference is calculated between them.
The total hours field gives you the decimal figure for timesheets and invoicing.
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