Time Duration Calculator
Find the exact time between two dates and times in days, hours and minutes.
Duration—
Total hours—
Total minutes—
How time duration is calculated
The calculator counts the full days between the two dates, then adds the difference between the two clock times. The result is shown three ways: days, hours and minutes; total hours as a decimal; and total minutes. Use it for long shifts, travel times, project tracking and anything that crosses midnight or several days.
Frequently asked questions
How many hours are in a day?
There are 24 hours in a day, 168 hours in a week and 8,760 hours in a 365 day year.
Does this include daylight saving time changes?
No. The calculator counts clock time, so a day with a daylight saving change is still treated as 24 hours.