Project Business Days Calculator
Calculate workdays for project deadlines. Toggle between counting business days or shifting dates by business days.
Processed locally in your browser — nothing is uploaded.
How to Use
- Choose tab: Business Days Between or Add/Subtract Business Days.
- Input starting date and terms.
- Click calculate to view output.
FAQ
How does date adjustment handle weekends?
If you add 5 business days, the calculator steps forward skipping Saturdays and Sundays (and holidays) until 5 active workdays pass.
Can I add national holidays?
Yes, list holiday dates line-by-line (YYYY-MM-DD) to skip them.