Business Days Calculator

Count working days between two dates, or add business days to a date to find a deadline. Weekends are skipped and you can list your own holidays to exclude.

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How to use it

Choose “Count between dates” or “Add business days”.
Enter the dates (or a start date and number of days).
Paste any holidays to skip, one date per line in YYYY-MM-DD format.

Examples

Shipping estimate

An order placed on Friday, October 2, 2026 with 5 business days' delivery arrives Friday, October 9, skipping the weekend.

Working days in a month

October 2026 has 22 weekdays from the 1st to the 31st. Listing a holiday such as October 12 reduces it to 21.

What counts as a business day

Business days are Monday through Friday. The calculator skips Saturdays and Sundays and any dates you list as holidays. Public holidays differ by country, state and employer, so none are removed automatically.

When counting between dates, both the start and end dates are included if they are weekdays. When adding days, the start date itself is not counted — adding 1 business day to a Monday gives Tuesday.

Frequently asked questions

Are public holidays excluded?

Only the ones you enter. Holidays vary by location and employer, so paste the dates that apply to you in the holidays box.

What does “within 3 business days” mean for a Friday?

Counting from Friday, the first business day is Monday, so 3 business days lands on Wednesday.

Can I subtract business days?

Yes. Enter a negative number in “Add business days” to count backwards, for example to find the latest date to submit something.

Days Between Dates CalculatorCount the exact number of days between two dates, and see it in weeks, months and years plus business days. Choose whether to include the end date.Days Until Date CalculatorSee how many days are left until any date — a birthday, holiday, deadline or trip — counted from today, with weeks and weekdays remaining.Work Hours CalculatorAdd up a week of shifts with start times, end times and breaks. Get total hours, regular and overtime hours, and optional gross pay — a quick timesheet you can copy.Date CalculatorAdd or subtract days, weeks, months and years from any date to find a deadline, due date or anniversary. Month ends are handled correctly.

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More in Date & Time · Last reviewed September 2026