How many business days are in a month?

Most months have 20–23 business days depending on weekends and public holidays. February typically has 20, while months with one fewer weekend can have 23.

What are business days?

Business days are Monday through Friday, excluding Saturday, Sunday, and public holidays. They are used in payment terms (net-30), SLA agreements, and contract deadlines.

Business Days Calculator

Calculate business days between two dates, or find a date that is N business days away. Optionally exclude US or UK public holidays.

Start date

End date

Exclude public holidays

Business Days

23

Total calendar days	31
Weekdays (Mon–Fri)	23
Weekend days	8
Business days	23

Business days exclude Saturdays and Sundays. Public holiday data covers 2024–2026.

Business Days Calculator

The Business Days Calculator counts the number of working days between two dates (excluding weekends and optionally public holidays), or finds a future date that is N business days away.

Common uses

Calculate net-30/net-60 payment terms
Find when a 10-business-day notice period expires
Determine SLA resolution deadlines
Plan project timelines