Free · Client-side · Weekends Excluded

Business Days Calculator

Count working days between dates, or add business days to a date.

From

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Excludes Saturdays and Sundays only — public holidays aren't accounted for.

Why Business Days?

Why Not Just Count Calendar Days?

Contracts, SLAs, shipping estimates, and payroll processing are almost always specified in business days, not calendar days — "5 business days" quietly becomes 7 calendar days whenever a weekend falls in between. Miscounting this is a common source of missed deadlines.

This calculator handles that weekend-skipping arithmetic for you, in both directions: counting how many business days fall between two dates, or projecting forward from a start date by a given number of business days.

FAQ

Frequently Asked Questions

A business day is any day that isn't a Saturday or Sunday. This calculator counts or adds only Monday-through-Friday days, skipping weekends automatically.

No — it excludes weekends only. Public holidays vary by country, region, and industry, so factor in any known holidays manually when working with dates near them.

Switch to the "Add Business Days" mode, enter a start date and the number of business days to add, and the calculator returns the resulting date, skipping any weekends in between. Need to include weekends instead? Use the plain Date Difference Calculator.

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Business Days Calculator

Why Not Just Count Calendar Days?

Frequently Asked Questions

How are business days calculated?

Does this calculator account for public holidays?

How do I add business days to a date?

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