DataToolsLab
Date & Time Tools

Working Hours Calculator

Calculate hours worked between clock-in and clock-out times.

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What is Work Hours?

A timesheet helper: enter clock-in, clock-out, and break length to get net hours worked, plus a running weekly total across multiple days.

How it works

Durations are computed in minutes with overnight handling, breaks subtracted, and the week's total accumulated and formatted as h:mm.

  1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
  2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
  3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Timesheet entry

Enter 09:00–12:00 and 13:00–17:00 to total 7 hours — with lunch excluded automatically so the day's billed time is correct.

Common mistakes

Forgetting breaks

Raw start-to-end time overstates work. Enter intervals exactly as clocked, or subtract breaks explicitly.

Frequently asked questions

Can I total a whole week?

Yes — add daily intervals and the week's total appears in hours and minutes.

Does it handle overnight shifts?

Yes — an interval ending before it starts is treated as crossing midnight.

Can I export the summary?

Copy the totals or per-day breakdown for pasting into a timesheet or spreadsheet.

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