Free browser tool
Business Days Calculator
Count working days between dates, add or subtract business days, and account for US/UK holidays with shareable date calculator links.
Use negative numbers to count backwards.
Calendar span
7 days
Inclusive: 8 days
Aug 23, 2026 → Aug 30, 2026
Weeks & weekdays
1w 0d
5 weekdays · 3 weekend days
Business days (US)
5
Includes weekends + region-specific holidays
Add/Subtract business days
Starting from Aug 23, 2026, moving forward 5 working days in the US calendar lands on:
Friday, August 28, 2026
Business days skip weekends plus official holidays for the region you selected.
Deep-link any scenario by sharing URLs like /time/duration?start=2025-11-01&end=2025-12-15&bizdays=US.
Upcoming holidays (US)
Keep these non-working days in mind when planning timelines.
Labor Day
Monday, September 7, 2026
Veterans Day
Wednesday, November 11, 2026
Thanksgiving
Thursday, November 26, 2026
Christmas Day
Friday, December 25, 2026
New Year's Day
Friday, January 1, 2027
Martin Luther King Jr. Day
Monday, January 18, 2027
Business day calculator for real deadlines
Use this workday calculator when you need to count business days between two dates, add working days to a start date, or subtract business days from a deadline. The result updates for weekends and the selected holiday calendar.
Common workday calculations
- Count working days between contract, invoice, payroll, or delivery dates.
- Add 5, 10, 30, or 45 business days to a project start date.
- Subtract business days from a filing, review, or launch deadline.
- Compare calendar days, weekdays, weekends, and holiday-adjusted business days in one view.
US federal holidays and UK bank holidays
Select United States for the recurring federal holiday calendar, or United Kingdom for bank holidays in England and Wales. The UK calculator does not cover Scotland, Northern Ireland, or one-off holidays, so check an official calendar when those dates affect a deadline.
Workflow ideas
- Attach a deep link to SOWs so clients can see exactly how many working days span a milestone.
- Embed the business-day offset in incident runbooks to forecast postmortem due dates.
- Share upcoming holiday lists during handoffs so teams see when coverage gaps might occur.
Business day calculator FAQs
What counts as a business day?
A business day is Monday through Friday, excluding holidays in the selected calendar. Choose US federal holidays or UK bank holidays for England and Wales before reading the result.
Are the start and end dates included?
The business-days-between-dates result counts both the start and end date when either is an eligible business day. The calendar span also shows a separate inclusive total so the convention is clear.
Can I add or subtract working days from a date?
Yes. Enter a positive number to add business days or a negative number to subtract them. The resulting date skips weekends and holidays in the selected calendar.
Which UK bank holidays are included?
The UK option follows the standard England and Wales calendar, including New Year’s Day, Good Friday, Easter Monday, the May and summer bank holidays, Christmas Day, and Boxing Day. One-off bank holidays and the Scotland and Northern Ireland calendars are not included.
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