Does the calculator count both endpoints?

Yes, the default mode counts the start and end dates when they are business days.

Can I exclude holidays?

Yes. Enter holiday dates in the custom holiday field and the calculator will remove them from the count.

The calculator swaps them automatically so you still get a positive business day count.

Count the working days between two dates and subtract weekends or optional holidays from the result.

Use it for project timelines, delivery planning, leave requests, and any schedule that only counts weekdays.

Start date

End date

Count mode

Custom holidays

Enter dates as YYYY-MM-DD, separated by commas or new lines.

A business day is usually a weekday that is not a weekend or holiday, so the calculator counts only the days you can realistically work.

Business days = total dates in range - weekend days - holiday days

The calculator walks through each date in UTC so the result is stable across time zones.

Example 1: A Monday-to-Friday range with no holidays returns 5 business days.

Example 2: A two-week range with one holiday removes that holiday from the weekday count.

Example 3: Reversed dates still produce the same positive business day total.

Output	Meaning	Action
Business days	Weekdays remaining after exclusions.	Use for deadlines or work schedules.
Weekend days	Saturday and Sunday dates inside the range.	Check whether your office works on weekends.
Holiday days	Custom dates removed from the count.	Update the list if your calendar changes.

No. By default, Saturday and Sunday are treated as weekends and are excluded from the business day count.

Enter holiday dates in YYYY-MM-DD format, separated by commas or new lines, and the calculator removes matching weekdays.

Yes. If your school follows a weekday calendar, the same business-day logic works well for classes, assignments, and term planning.