How to use this calculator
- Enter or choose start time.
- Enter or choose end time.
- Enter or choose unpaid break.
- The hours worked (decimal) updates as you type. Use Copy result or Share to keep it.
Method
Minutes = End − Start (add 24 h if End is earlier than Start) − Break; Hours = Minutes ÷ 60
- Start, End
- 24-hour clock times
- Break
- unpaid break in minutes
Worked example
- From 09:00 to 17:30 is 8 h 30 min = 510 minutes.
- Minus a 30-minute break: 510 − 30 = 480 minutes.
- 480 ÷ 60 = 8.00 hours.
A 09:00 to 17:30 shift with a 30-minute unpaid break is 8 hours of work.
What the result means
Use the decimal figure to multiply by an hourly rate: 7 h 45 min is 7.75 hours, not 7.45.
Assumptions and limits
- Shifts are shorter than 24 hours.
- Clock changes for daylight saving time during the shift are not counted.
- For a full week with overtime, use the Time Card Calculator.
Questions
How do I enter a night shift?
Enter it as it is, for example 22:00 to 06:00. Because the end is earlier than the start, the calculator counts through midnight and gives 8 hours.
Is a paid break subtracted?
Only enter breaks you are not paid for. Paid breaks count as working time.