Time Calculator
Add or subtract two time durations. Enter hours and minutes for each, and get the result broken into days, hours and minutes plus decimal hours — handy for timesheets.
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Save ⟶How to use the Time Calculator
- 1Enter first duration — hours in the form on the left.
- 2Fill in the remaining fields — the result updates automatically as you type.
- 3Review the highlighted result and the supporting breakdown on the right.
- 4Use Copy, Share or Print to save or send your result.
Working with time arithmetic
Time math is base-60: convert everything to minutes, do ordinary arithmetic, then convert back (divide by 60; the remainder is minutes). Payroll systems usually want decimal hours — 7h 45m is 7.75 hours, because 45/60 = 0.75.
Common decimal equivalents worth memorizing for timesheets: 15 min = 0.25, 20 min = 0.33, 30 min = 0.5, 45 min = 0.75.
Frequently Asked Questions
▸How do I convert minutes to decimal hours?
Divide by 60. 50 minutes = 50 ÷ 60 = 0.83 hours.
▸Why does my timesheet use decimal hours?
Payroll multiplies hours × rate, which needs a single decimal number rather than hours-and-minutes notation.