Time Duration Calculator
Find the time between two clock times — perfect for shifts, timesheets and events.
How it’s calculatedDuration = end time − start time − break. If the end time is earlier than the start time, it is treated as the next day (an overnight shift).
How to calculate time duration
- Enter the start timeType when it began.
- Enter the end timeType when it finished.
- Read the durationSee hours and minutes, even across midnight.
About the Time Duration Calculator
Track work shifts, study sessions, travel time or billable hours.
- Hours and minutes between times
- Overnight shifts and unpaid breaks
- Decimal hours for timesheets
Time Duration Calculator FAQ
How do I calculate hours worked?
Enter your start and end time and any unpaid break; the calculator subtracts the break for you.
Does it work for night shifts?
Yes. Tick “The end time is on the next day” and the duration is counted across midnight.
What are decimal hours?
Time written as a number, for example 7 hours 30 minutes is 7.5 hours.
Is it free?
Yes.