Time and Dates
Hours and Minutes Calculator
Add or subtract two amounts of time given in hours and minutes to get a combined total, useful for adding up shifts or tasks.
Your results
Total6h 15m
Calculation breakdown
- Total
- (h1×60+m1) ± (h2×60+m2), converted back to hours and minutes
Worked example
Adding 3h 45m and 2h 30m gives a total of 6h 15m.
Assumptions
- Negative results are floored to zero rather than shown as a negative duration.
How this calculator works
This calculator adds or subtracts two durations expressed in hours and minutes and returns the combined result, correctly carrying minutes over into hours. It's useful for totalling up multiple work shifts, tasks or activities logged separately.
Frequently asked questions
Can I subtract one duration from another?
Yes, choose the subtract operation; if the result would be negative, the calculator shows zero and a note.
What happens if minutes add up to more than 60?
The calculator automatically carries the extra minutes over into whole hours.
Can I use this for adding up several shifts?
Yes, run it repeatedly, feeding each running total back in as one of the two durations.
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