Enter a start and an end and this calculator returns the hours between two times, with any unpaid break taken off. The answer appears in hours and minutes and in decimal hours, because timesheets and payroll want different notations for the same duration.
Overnight spans are handled
If the end time is earlier than the start, the span is treated as crossing midnight rather than as an error, so 22:00 to 06:00 correctly returns eight hours. This is the case that trips up spreadsheet formulas most often.
From one span to a full week
For a single shift this calculator is enough. For a full week with daily totals and an overtime split, move to the time card calculator. For tracking as you go rather than after the fact, use the punch clock, and see how to calculate hours worked for the method by hand.