Compute exact working days between any start and end date with customizable weekend definitions (Saturday/Sunday or Friday/Saturday) and custom holiday exclusions. Also add or subtract N business days to find project delivery dates.

Privacy & Data Processing Notice

No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.

Frequently Asked Questions

Which days are counted as weekends?

By default Saturday and Sunday are excluded, but you can select Friday & Saturday for Middle Eastern working calendars or Sunday only.

Can I add business days to a date?

Yes! Switch to "Add / Subtract Days" mode to find the exact target completion date after N working days.

Does this tool upload dates or client project plans?

No. Zero server requests are made; your business dates remain private in your browser.

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