How to use Time Duration Calculator
- Pick the start time and the end time.
- Optional: enter an unpaid break in minutes.
- Read the duration in hours and minutes, and as decimal hours for pay calculations.
About this tool
The duration is the end time minus the start time. When the end is earlier than the start, 24 hours are added, which suits night shifts such as 22:00 to 06:00 (8 hours). Decimal hours divide the minutes by 60, so 7 hours 30 minutes is 7.5 hours.
The calculator covers periods of up to 24 hours on a clock. For longer periods use the Date Difference Calculator.
Privacy: This tool runs in your browser. What you type or choose is not sent to a server by this website.
Common questions
How do I calculate hours for pay?
Use the decimal hours result and multiply by the hourly rate, or use the Hourly Wage Calculator.
Does it use AM and PM?
It uses the time format of your browser. Enter times as you normally would on your device.