Business Days Calculator
Skip weekends (and optional holidays) when adding or counting business days.
Mode
Holidays
Result date
Friday, August 28, 2026
What is this tool?
A business day is Monday through Friday. This tool can project a date forward or backward by a number of business days, or count how many business days fall between two dates — optionally excluding a custom list of holiday dates you provide.
How to use it
- Choose a mode: add business days to a start date, or count business days between two dates.
- Optionally switch to “Weekends + custom holidays” and paste holiday dates (YYYY-MM-DD, one per line).
- Enter your date(s) and read the result.
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