Category: Date & time
Business Days Calculator
Count working days between two dates, or add them to a date
Count the business days between two dates, excluding Saturdays and Sundays, or add a number of business days to a start date to find the resulting date. Calculated locally in your browser.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
Calendar-day counts overstate how much working time sits between two dates, because they include weekends. This tool switches between two modes: counting how many weekdays fall between a start and end date, and projecting forward from a start date by a chosen number of business days while skipping every Saturday and Sunday. It treats Saturday and Sunday as the weekend in both modes and does not account for public holidays, since those vary by country and calendar.
How to use it
- Choose whether to count days between two dates or add days to one.
- Enter the date or dates the mode asks for.
- Read the business day count, or the resulting date.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Does this account for public holidays?
- No. It only excludes Saturdays and Sundays, since public holidays differ by country, region and calendar. Subtract known holidays from the result yourself if you need that precision.
- Are the start and end dates both counted?
- Yes, the count mode is inclusive of both the start and end date, matching how most people count "days between" in everyday use.
- Is my data sent anywhere?
- No. The dates are calculated locally in your browser.