Time Card Calculator
Calculate worked hours from start/end times and an optional unpaid break.
How to use this calculator
Enter the requested values, then select Calculate. Results are processed locally in your browser for this static website.
Accuracy notes
Results may be affected by rounding, unit conventions and the assumptions shown by the calculator. Verify important calculations independently.
What this calculator solves
Calculate worked hours from start/end times and an optional unpaid break. This page provides the interactive calculation together with a plain-language explanation so the result can be checked against the underlying method.
Science and formulae
Worked time is end time − start time − unpaid break, with overnight shifts handled by the selected time logic.
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