Date & Business-Day Calculator

Count calendar and business days, or calculate a deadline using your holidays.

Make it work with your data.

Calculation

Start date

End date

Business days to add (negative to subtract)

Include the start dateInclude the end date

Holidays (YYYY-MM-DD, one per line)

HOW TO USE IT

Date & Business-Day Calculator

For a date range, choose whether to include each endpoint. For a deadline, enter a positive or negative number of business days. Add holidays for your calendar.

What to know

Saturday and Sunday are nonworking days. Holidays are user supplied; no national calendar is assumed. Date calculations use UTC calendar dates to avoid daylight-saving shifts. Deadline mode excludes the start date; adding zero returns the start date. Duplicate holidays are counted once.

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