What counts as a business day
This calculator excludes Saturdays and Sundays. Public holidays vary by country and region and are not deducted — subtract them manually for precise SLA or payroll math.
Business Days Calculator
Count working days between two dates or find the date N business days away, skipping weekends.
Enter your details and press Calculate to see results.
Example
Adding 10 business days to Monday Jan 5, 2026 lands on Monday Jan 19 — two weekends skipped.
Advertisement
Frequently asked questions
Do shipping estimates use business days?
Yes — '3–5 business days' typically excludes weekends and listed holidays.
Is the start day counted?
No — counting begins the next calendar day when adding; between-dates mode measures elapsed workdays.
Related calculators
Age Calculator
Exact age in years, months and days from any birth date — plus total days and next birthday countdown.
Date Calculator
Add or subtract days, weeks, months or years from a date to find deadlines and future dates.
Hours Calculator
Time between a start and end clock time, with optional break deduction for timesheets.
Days Between Dates Calculator
Count days between two dates, with inclusive totals, weekday counts and weekend counts.
Week Number Calculator
ISO-8601 week number for any date, plus that week's Monday-to-Sunday range.
Mortgage Calculator
Estimate monthly mortgage payments including principal, interest, taxes and insurance for any home price.