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Count working days between dates or add business days, with custom weekends and holidays.
Business days
20
There are 20 business days between Sat, Sep 5, 2026 and Mon, Oct 5, 2026.
Total days
30
Weekend days skipped
10
Holidays skipped
0
Weekend days
Highlighted days don't count as business days.
Custom holidays
No holidays added yet.
Holidays that fall on a weekend day aren't double-counted — they're already excluded.
All calculations use your local calendar dates and run entirely in your browser.
Count business days between two dates or add/subtract working days from a start date. Customize which days count as your weekend, add your own holiday list (holidays falling on weekends are never double-counted), and choose whether the end date is included. Shows total days, weekends skipped and holidays skipped. Runs entirely in your browser.
The Business Days Calculator efficiently counts working days between two dates or calculates future and past dates by adding or subtracting business days. It allows full customization of weekends and holiday lists without double-counting, operating entirely in the browser for maximum privacy and speed without requiring an account or software installation.
Good to know: Users requiring automated synchronization with external corporate calendars or recurring enterprise scheduling systems may need a dedicated project management suite instead.
Learn how to calculate working days between two dates or add business days using custom weekends and holidays.
Select your calculation mode
Choose whether you want to count business days between two dates or add and subtract working days from a start date.
Enter your start and end dates
Input your primary starting date and, depending on your mode, your target end date or number of business days to add.
Customize weekends and holidays
Configure which days count as your weekend and add your own holiday list so those dates are automatically skipped.
Choose date inclusion preferences
Select whether you want the final end date to be included in your final working day calculation.
View your calculation results
Instantly see the total business days, weekends skipped, and holidays skipped directly in your browser.
Estimated time: PT1M
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