How it works
Saturday and Sunday are always treated as non-working days. Any dates you paste in the holidays box are also excluded. In "count" mode both the start and end dates are included in the total. Results are computed instantly in your browser — nothing is uploaded anywhere.
FAQs
How do I count business days between two dates?
Enter a start and end date. The calculator counts Monday to Friday days between them, excluding weekends and any holidays you list.
Does it exclude public holidays?
Yes — paste one holiday date per line (YYYY-MM-DD) and those days are excluded from the count.
Can I add N business days to a date?
Yes. Use the add-business-days mode: enter a start date and a number of business days to get the resulting date.
Is this business days calculator free?
Yes, 100% free with no signup. All calculations run in your browser.