Business Days Calculator
Count working days between two dates or add business days to a date, excluding weekends and holidays.
Business days
—
Quick answer
Count working days between two dates, or add business days to a start date, skipping weekends and, optionally, the public holidays of your country.
- Choose a Mode: count between dates, or add days.
- Set the Start date and the end date or Business days to add.
- Pick holidays for your country, or Weekends only.
Reviewed by the TimerHub team · Last reviewed November 4, 2026 · Data sources
Related tools
- CalendarA clean monthly and yearly calendar with week numbers and quick navigation.
- Date CalculatorAdd or subtract days, weeks, months, and years from any date to find a new date.
- Days Between DatesCalculate the exact duration between two dates in days, weeks, months, and business days.
- Age CalculatorFind your exact age in years, months, days and hours, plus your life in numbers: heartbeats, full moons and laps around the sun.
- Dog Age CalculatorConvert dog years to human years by size, with a cat age calculator and a full chart.
- Due Date CalculatorEstimate your pregnancy due date, how many weeks along you are, and your trimester dates from your last period.
How to use it
- 1
Choose a mode
Count days between two dates, or add business days to a date.
- 2
Pick your dates
Select the start and end (or the number of days to add).
- 3
Exclude holidays
Optionally pick a country to skip its public holidays too.
Perfect for every need
Project & delivery dates
Find a realistic due date that skips weekends and holidays.
- SLA deadlines
- Lead times
- Shipping estimates
HR & payroll
Count working days for leave, notice periods, and accruals.
- Notice periods
- PTO planning
- Probation windows
Finance & legal
Compute settlement and response windows in working days.
- T+2 settlement
- Response deadlines
Frequently asked questions
Which days count as business days?
Monday to Friday. Saturdays and Sundays are always excluded. If you select a country, its public and bank holidays are excluded as well.
Are the start and end dates included?
The start date is not counted and the end date is, like counting “days from” a date. Monday to Friday of the same week is 4 business days; a range that starts and ends on the same day is 0. Add 1 if you want to count the start day too.
Which countries' holidays are supported?
A set of popular countries is available in the holiday dropdown, covering a range of recent and upcoming years. Dates outside that range fall back to weekends only, and the tool tells you when that happens.
Can I add business days instead of counting them?
Yes. Switch to “Add business days,” enter a start date and a number, and the tool returns the resulting working day (holiday-aware if you pick a country).