Business days: The count of Monday-through-Friday days between your two dates, inclusive of both the start and end date. This is the number you typically need for project timelines, payment clearing windows, and contractual deadlines.
Calendar days: The total number of days including weekends, also inclusive. Useful for comparing against business-day counts to understand how much weekend time falls in the range.
Weekend days: The number of Saturdays and Sundays in the range. Subtract this from calendar days and you get business days — the tool does this automatically.
How This Calculator Works
You pick a start date and an end date. The tool walks through every day in the range, checks whether it falls on a Saturday or Sunday, and tallies business days and weekend days separately. Both dates are inclusive. Public holidays are not subtracted because holiday schedules vary by country, state, and employer — check your locale's official list if you need net working days.
Quick Questions
Does this subtract public holidays?
No. Holiday calendars vary by country, state, and employer. This tool counts Monday–Friday only. Subtract any holidays that fall on weekdays manually, or check your government's official holiday list for your jurisdiction.
Are both dates included in the count?
Yes, the count is inclusive of both the start and end dates. If your start and end date are the same weekday, the result is 1 business day.
What if I need to add business days to a date?
This tool counts between two known dates. To find a date N business days from a start, use the date calculator and manually skip weekends, or estimate by multiplying business days by 7/5 to get approximate calendar days to add.
Does this work for international business weeks?
This calculator assumes a Saturday–Sunday weekend, which is standard in most of North America, Europe, and much of the world. Some countries (e.g., parts of the Middle East) use a Friday–Saturday weekend — adjust accordingly.