How to use the Time Calculator
- Choose add or subtract.
- Enter both durations.
- Read the result.
How it works
The result is shown as hours and minutes, decimal hours (useful for billing) and total minutes. Minutes above 59 are carried into hours automatically.
Worked example
5 h 45 min + 2 h 30 min = 8 h 15 min (8.25 decimal hours).
Good to know
This calculator deals with durations, not clock times across time zones.
Frequently asked questions
Divide minutes by 60: 45 min = 0.75 h.
Yes when subtracting a larger duration.
Results are estimates for information only and are not financial, tax or legal advice.