Date & time
Work hours
Calculate paid hours for a shift, including overnight shifts.
Calculators / Date & time / Time duration
Time duration calculator
Calculate elapsed time between two times on the same or next day.
On this page
Elapsed time8.5hours
Elapsed minutes510minutes
Calculator controls
How to calculate
Calculate elapsed time between two times on the same or next day.
Elapsed time = end-start; Elapsed minutes = (end-start)*60
Worked example
Start hour in decimal 24-hour time: 9; End hour in decimal 24-hour time: 17.5.
Elapsed time: 8.5 hours; Elapsed minutes: 510 minutes.
Assumptions and limits
For an overnight interval, enter the ending hour plus 24. Breaks are not deducted unless subtracted separately.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate elapsed time between two times on the same or next day. The displayed figures use the inputs and formula shown on this page.
When this tool is useful
Use the time duration to compare a scenario, check an estimate, or verify a manual calculation.
Understanding your inputs
| Input | What to enter |
|---|---|
| Start hour in decimal 24-hour time | Enter a number of at least 0 and no more than 23.999. |
| End hour in decimal 24-hour time | Enter a number of at least 0 and no more than 47.999. |
Frequently asked questions
What should I check before using the time duration result?
For an overnight interval, enter the ending hour plus 24. Breaks are not deducted unless subtracted separately.
Is this time duration result exact?
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.