Time Duration Calculator
Calculate the time between a start and end time, minus breaks — in hours and minutes and as decimal hours for timesheets. Overnight shifts are supported.
This tool runs entirely in your browser.
Loading tool…
How to use the Time Duration Calculator
- 1Enter the start and end times.
- 2Enter break minutes, if any.
- 3Read the duration and decimal hours.
What is the Time Duration Calculator?
Decimal hours convert minutes to fractions of an hour: 7 h 45 min = 7.75 hours. Payroll systems often require this format.
Frequently asked questions
What if the shift ends after midnight?
If the end time is earlier than the start, it is treated as the next day.
Is the Time Duration Calculator free and private?
Yes. The Time Duration Calculator is free, needs no account, and runs entirely in your browser. What you type is never sent to a server or stored.
Related tools
All calculators →- Time ConverterConvert hours to minutes, days to seconds, weeks to days.
- Date Difference CalculatorExact time between two dates.
- Working Days CalculatorCount business days, excluding holidays.
- Percentage CalculatorWork out percentages of numbers.
- Percentage Increase CalculatorFind the percentage increase or decrease.
- Age CalculatorCalculate exact age in years, months and days.
