Work from 22:00 to 06:00 with a 30-minute break
Input and settings
Start 22:00 / End 06:00 / Break 30 minutes
Expected result
7 hr 30 min / Decimal hours: 7.5
Calculate net work hours after subtracting a break, including shifts that finish after midnight.
These are example steps; replace the values for your task.
The calculator finds the elapsed time from start to finish, then subtracts the break. For example, 22:00 to 06:00 with a 30-minute break gives 7 hours 30 minutes, or 7.5 decimal hours.
This is a time calculation only. It does not decide overtime, pay, or compliance with local employment rules.
Subtract a break from the time between start and finish, and see both hours and minutes and decimal hours.
If the finish is not later than the start, it is treated as the following day. Equal start and finish times represent a 24-hour shift.
Enter 22:00 as the start, 06:00 as the finish and 30 minutes as the break. The finish is treated as the next day, giving 450 minutes, 7 hours 30 minutes, or 7.5 decimal hours.
Check overnight work and equal start/end times using clock times and a break.
Example buttons replace the inputs and settings above and calculate. Restore previous input steps back one example at a time. After trying multiple examples, repeat restore to return to your original input. This history is lost when the page closes.
Start 22:00 / End 06:00 / Break 30 minutes
7 hr 30 min / Decimal hours: 7.5
Start 09:00 / End 09:00 / Break 0 minutes
24 hr 0 min / Decimal hours: 24
An end time at or before the start is treated as the next day. The first example subtracts a 0.5-hour break from eight clock hours. Decimal 7.5 means seven hours and thirty minutes. Equal times mean 24 hours, so do not use equal times to record a day without work.
This handles one clock-time span, without dates, time-zone offsets, daylight-saving changes or multi-day shifts. Breaks must be non-negative and no longer than the span. Pay, overtime categories and break entitlements are not assessed.
Verification: existing calculation functions are checked against eight hours minus thirty minutes, the 24-hour equal-time rule and rejection of excessive breaks. Both language interfaces and input history are checked.
09:00 to 17:30 with a 60-minute break gives 7 hours 30 minutes, or 7.5 decimal hours.
Decimal hours are net minutes divided by 60. Thirty minutes is 0.5 hours, so 7 hours 30 minutes is not 7.30.
Equal start and end times mean a 24-hour shift ending the following day, rather than zero hours.
Yes. A shift such as 22:00 to 06:00 is treated as crossing midnight.
The tool shows an error because the net working time would be invalid.
No. It calculates elapsed working time only.
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