Business Days Calculator: Count Working Days
Count weekdays between two dates, skipping Saturdays, Sundays, and any holiday dates you paste.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the business-day calculator with its two date fields ready to fill in. Enter a start date and an end date and the tool counts every Monday-through-Friday day between them, skipping Saturdays and Sundays automatically.
Counting working days by hand is easy to get wrong the moment a range crosses a weekend or a public holiday — off-by-one errors are common when people count calendar days instead of business days, or forget that a holiday fell on what would otherwise be a workday.
Paste your own holiday dates into the holidays box (one per line, YYYY-MM-DD) and they are excluded from the count too, alongside the weekend rule. Toggle whether the start and end dates themselves count, and the result updates instantly — nothing leaves your browser.
Example. 2024-01-01 through 2024-01-05, both endpoints included and no holiday lines, counts 5 business days. The calendar gap on the detail line is 4. Adding the holiday 2024-01-01 drops the business count to 4.
Limit. Saturday and Sunday are the only weekends. Any other closure counts only when you paste that ISO date. The calendar-day number is the difference of the two dates, not an inclusive day count.