Time Duration Calculator
100% PrivateCalculatorsMeasure the exact span between two date-times, shown in days, hours, minutes and seconds.
Runs entirely in your browser. Your input is not uploaded to Ovatly or anywhere else.
2 days, 2 hours, 30 minutes, 0 seconds
- Total seconds
- 181,800
- Total minutes
- 3,030.0
- Total hours
- 50.50
- Total days
- 2.1042
Times are read in your browser's timezone, so a span crossing a daylight-saving change reflects the clock shift, exactly as your wall clock would.
- 1Enter the start date and time.
- 2Enter the end date and time.
- 3Read the breakdown and the totals in the result panel.
The duration is 2 days, 2 hours and 30 minutes: 181,800 seconds in total, or 50.50 hours. The totals row is what you want for billing, logging and comparisons; the breakdown is what you want for reading aloud.
- Times are interpreted in your browser's timezone. A span crossing a daylight-saving change shows the shifted length, matching your wall clock.
- The end must be after the start; swap the fields for a span in the other direction.
- Seconds are exact whole seconds between the two timestamps; sub-second timing is not offered.
That tool counts whole calendar days and business days between dates. This one includes times of day and reports hours, minutes and seconds, for spans where the clock matters.
About this tool
The Time Duration Calculator measures the exact span between two date-times and expresses it every useful way: days, hours, minutes and seconds as a breakdown, plus totals in each unit. It is made for elapsed-time questions: how long a process ran, the gap between two events, or the true length of a deadline window.
Related tools
Part of Ovatly's free tools in Calculators.