Working Hours Calculator

Yes. When the end time is the same as or earlier than the start time, the calculator treats the shift as crossing midnight and adds 24 hours. A shift from 22:00 to 06:00 is read as eight hours, not a negative span, and a note confirms the midnight crossing.

The break in minutes is subtracted from the raw span between the two times, so the result counts paid hours only. A 30 minute lunch on an eight hour span leaves 7 hours 30 minutes of paid time.

Decimal hours expresses the minutes as a fraction of an hour, so 7 hours 30 minutes reads as 7.5 and 7 hours 45 minutes reads as 7.75. Most payroll and invoicing systems expect this decimal form rather than hours and minutes.

The pickers use 24-hour time such as 09:00 or 17:30. Single digit hours like 9:00 are also valid. The engine reads any H:MM or HH:MM value in range, from 00:00 to 23:59.

That is rejected with a short error, because the paid time would be negative. Reduce the break or check the start and end times, since a break can never exceed the span it is subtracted from.

No. It computes one shift at a time between a single start and end. For a weekly total, calculate each day and sum the decimal hours, which add cleanly because they are plain numbers.

The hours and minutes figure is exact. Only the decimal hours are rounded, to two places, so 7 hours 20 minutes shows as 7.33 rather than a long repeating decimal.

The break you enter is treated as unpaid and removed from the total. If a break is paid at your workplace, simply leave the break field at 0 so the full span counts.

No. Every calculation runs in your browser and nothing is uploaded or saved, so your shift times stay on your device.