Calculate business days between dates
Count business days between two dates, excluding weekends and any holidays you list.
Calculated in your browser. Nothing you enter is sent to a server.
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Start date
End date
Holidays to exclude (optional)
Enter both a start and end date to count business days.
01
Enter the start and end dates
The range is treated as inclusive of both ends.
02
List any holidays (optional)
One YYYY-MM-DD date per line. These are excluded if they fall on a weekday within the range.
03
Read the business day count
Weekends and listed holidays are excluded automatically.
Frequently asked
Which days count as weekends?
Saturday and Sunday are treated as weekends and excluded from the business day count.
What format should holidays be entered in?
One date per line, in YYYY-MM-DD format (e.g. 2026-12-25). Any line that isn't a valid date in that format is silently ignored.
Does a holiday on a weekend get double-subtracted?
No. Only holidays that fall on a weekday within the date range are excluded from the count, since a weekend day was never counted as a business day to begin with.