Business Days Calculator

Count business days between two dates, or calculate the resulting date when adding or subtracting a number of business days, with fully configurable weekends and custom holidays — it never assumes Saturday and Sunday are the weekend in every country. All the arithmetic uses pure calendar dates, with no timezone shifting.

Processed on your device, no AIsin límite práctico de festivos personalizados

The data is processed on your device and is never sent to the server.

Use cases

Calculate the delivery date after N business days
Count business days for a project
Exclude custom holidays from a calculation

How to use this tool

Choose Count or Add/subtract
Set up the weekend and holidays
Check the result

Frequently asked questions

Does it assume the weekend is always Saturday and Sunday?

No. The weekend is fully configurable — you can choose any combination of days.

Does it download holidays automatically?

No. Holidays are entered manually or imported from a local file; the tool never queries a holiday API.

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