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Business Days Calculator

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

Business days between dates

— Monday to Friday
—Calendar days
—Weekend days
—Holidays skipped
—Work weeks

Add business days to a date

— Use a negative number to count backwards

How business days are counted

Every Monday to Friday between the two dates counts, starting with the start date. Tick Include end date to count the last day too. With holidays switched on, each US federal holiday that is observed on a weekday is removed. When a holiday falls on a Saturday it is observed the Friday before; on a Sunday, the Monday after.

Example: Monday, November 23 to Friday, November 27, 2026, both included, is 5 weekdays minus Thanksgiving (Nov 26) = 4 business days. Adding business days skips the start date, so 10 business days after a Friday lands on the Friday two weeks later.

US federal holidays <span data-out="year">2026</span>

HolidayDateObserved
New Year's DayThu, Jan 1—
Martin Luther King Jr. DayMon, Jan 19—
Washington's Birthday (Presidents Day)Mon, Feb 16—
Memorial DayMon, May 25—
JuneteenthFri, Jun 19—
Independence DaySat, Jul 4Fri, Jul 3, 2026
Labor DayMon, Sep 7—
Columbus DayMon, Oct 12—
Veterans DayWed, Nov 11—
Thanksgiving DayThu, Nov 26—
Christmas DayFri, Dec 25—

Juneteenth has been a federal holiday since 2021. Company and state holidays vary, so check your own calendar.

Frequently asked questions

How many business days are in a year?

A year has 260 or 261 weekdays (262 in a few leap years). Taking away the 11 US federal holidays leaves about 250 working days.

Is the start date counted?

When counting between dates, yes, if it is a weekday. When adding business days, no: day 1 is the next working day, which is how deadlines like "within 5 business days" are usually read.

Does it include state or bank holidays?

Only the 11 US federal holidays. Banks follow the Federal Reserve schedule, which is very close, but local and company holidays are not included.

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