Jack Tools
Business Days Calculator
Count working days between two dates or add business days with optional UK bank holiday support.
Enter your details
Count between dates
Turn off to add business days.
Skip weekends
Exclude Saturdays and Sundays.
Exclude bank holidays
Use official UK holiday data.
Include start date
Count the start date if valid.
Include end date
Count the end date.
Holiday data status
Loading official holiday data…
This calculator can exclude weekends and official UK bank holidays depending on your settings.
Result
0 business days
Choose a mode and enter your dates.
Business days
0
Calendar days
0
Working weeks
0.00
End date
—
Breakdown
Mode
Count between dates
Start date
—
End date
—
Weekend handling
Skip weekends
Bank holidays
Excluded
How This Business Days Calculator Works
This calculator counts working days between two dates or calculates a future date by adding a number of business days.
You can exclude weekends and optionally exclude official UK bank holidays for England & Wales, Scotland, or Northern Ireland.
This makes it useful for contracts, payroll timelines, delivery estimates, HR notice periods, and project scheduling.
Business days
Working weekdays after exclusions.
Calendar days
Total days including weekends.
Weekend control
Exclude Saturdays and Sundays.
UK bank holidays
Uses official GOV.UK data.
Business Days Calculator FAQs
A business day is normally a weekday. Weekends and optional bank holidays can be excluded.
Yes. When enabled, official UK bank holiday data from GOV.UK is used.
Add mode calculates the future date after a selected number of business days.
The calculator automatically reorders them and still gives the correct result.