Business Days Calculator
Working days between two dates (Mon–Fri)
🔒 On-device · Method · · Disclaimer · Business Days Calculator
Business Days Calculator is built for working days between two dates (Mon–Fri) — fast, free, and private. Type Start Date and End Date into Business Days; each keystroke re-runs the math. Business Days prints the result and its working. That makes Business Days handy for quick estimates anywhere. Nothing typed into Business Days leaves your device or the tab. Business Days handles business days calculator working days weekdays between dates the same way as related figures — one of the Everyday Life tools on CalcProMaster. Run Business Days twice to find the driving input. Business Days is free, instant and local.
What the defaults give
1 June to 5 June 2026 contains 5 business days.
The range runs Monday to Friday, so all five calendar days are working days and none are excluded.
How the count works
Business days = calendar days in the range that fall Monday to Friday, both dates included
June 1 2026 is a Monday and June 5 is a Friday, so the five days in between are all counted.
Worked examples
Mon 1 June → Fri 5 June 2026 → 5 business days of 5 calendar days
Fri 5 June → Mon 8 June 2026 → 2 business days (Friday and Monday, weekend excluded)
Mon 1 June → Tue 30 June 2026 → 22 business days of 30 calendar days
Mon 1 June → Mon 15 June 2026 → 11 business days
Sat 6 June → Sun 14 June 2026 → 5 business days of 9 calendar days
Both endpoints count
The range is inclusive: a deadline that says five business days from Monday reaches Friday, not the following Monday. That one-day difference decides contract dates, delivery windows and notice periods, so check which convention the document uses before rounding.
A working week is not always five days either. Some countries run Sunday to Thursday, and many businesses count Saturday as a working day, so a Mon–Fri count is a convention rather than a universal fact.
What the count leaves out
- Public holidays. A bank holiday inside the range is not a business day, and the tool does not know your calendar.
- Regional differences. Holidays vary by country, state and even industry.
- Company shutdowns. Many firms close between Christmas and New Year regardless of the official calendar.
- Part-time schedules. A four-day week makes Friday a non-working day for that employee.
- Time of day. A submission at 11 pm on the final day may count as the next business day under some rules.
For anything with a legal or financial consequence, count the weekdays here and then subtract the holidays from the relevant official calendar.
Counting backwards is where the inclusive convention earns its keep. A 10-business-day notice served on Monday 1 June falls due on Friday 12 June, not Monday 15, because the first day counts and weekends are skipped. Add a holiday and the date moves again, which is why contracts often specify both the count and the calendar. When the consequence is a penalty or a filing deadline, confirm the working week and the holiday list for the jurisdiction.
Frequently Asked Questions
How many business days are in a week?
Five under the Monday to Friday convention, which is what this tool counts. Some countries and employers use a different working week.
Are both start and end dates counted?
Yes, when both are weekdays. Monday to Friday includes five days, which is the usual reading of a five-business-day deadline.
Does the calculator exclude public holidays?
No. It counts weekdays only, so subtract any holidays that fall inside the range yourself.
How many business days are in June 2026?
Twenty-two. June 2026 begins on a Monday and has 30 days, giving four full weeks plus two extra weekdays.
Why does a Friday to Monday range show two days?
Because the weekend between them is excluded, leaving Friday and Monday as the only business days.
Are Saturdays business days?
Not in this count. In some industries and countries they are, and adding Saturday would turn June 2026 from 22 business days into 26.
Electricity Bill Calculator and other Everyday tools
Electricity Bill Calculator · Weather Index · Pet Age Calculator (Dog/Cat) · Savings Goal Date · Day of Year Calculator · Meeting Cost Calculator · Everyday Guides