Time Duration Calculator
By Santaji GadepatilinUpdated October 27, 2026
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Type in any field to change it. Press × on a value to calculate that field instead.
How to use this calculator
Enter a start time and an end time. The duration appears in decimal hours and minutes. If the end time is earlier than the start, it is treated as the next day.
Example
22:30 to 06:45 = 8.25 hours = 8 h 15 min (495 minutes).
Converting decimal hours
Multiply the decimal part by 60: 7.6 h = 7 h + 0.6 × 60 min = 7 h 36 min.
Frequently asked questions
How do I calculate the time between two times?
Subtract the start from the end. If the end is earlier on the clock, add 24 hours because it is the next day.
What is 8.25 hours in hours and minutes?
8 hours 15 minutes — multiply the decimal part by 60.
Can it handle more than 24 hours?
No — for longer periods, use the days between dates calculator.