Work Hours Calculator

Add up work hours from a time card

Totalling work hours from a time card, with breaks and overnight shifts, is fiddly and error-prone by hand. This calculator adds up weekly work hours accounting for breaks and shifts that cross midnight, so timesheets are accurate.

Why hand-totalling hours goes wrong

Adding hours is deceptively tricky: breaks must be subtracted, and a shift that starts before midnight and ends after it, say 10pm to 6am, is easy to compute as negative or wrong if you subtract the clock times naively. Doing it across a week of varied shifts compounds the chance of error, and payroll errors, over or under, cause real problems. A calculator that handles breaks and overnight shifts correctly produces an accurate weekly total, which matters both for paying people correctly and for anyone tracking their own hours against a target or for invoicing.

A calculation, not advice

It runs entirely in your browser, so your figures are never uploaded and stay on your own machine, which matters for business numbers you would not want to share.

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