Free · 166 countries · public holidays included
Business Days Calculator
Add or subtract business days from a date, or count the working days between two dates, with weekends and public holidays excluded, for 160+ countries.
A one-off date is easy. Dozens of contract, renewal, and notice-period deadlines are not. Lapsewise watches them all and reminds you before anything lapses.
What is a business day?
A business day is any day that is not a weekend and not a public holiday. In most countries, business days are Monday through Friday. Some countries observe different weekend patterns. For example, many Middle Eastern and North African countries use Friday and Saturday as their weekend.
Business days matter for shipping estimates, payment terms, legal notice periods, refund windows, and service-level agreements (SLAs). This calculator handles both the weekend logic and the public holiday data for your chosen country automatically.
How this calculator works
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Start day = day 0. The date you enter is not counted. "3 business days after Monday" lands on Thursday.
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Weekends are skipped based on the selected country's weekend definition (most use Saturday–Sunday; some use Friday–Saturday).
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National public holidays are skipped when the "Skip public holidays" toggle is on. Regional or state-level holidays are not included by default.
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Timezone-safe math All calculations use plain calendar dates with no UTC conversion, so there's no risk of off-by-one errors around daylight saving time.
Common use cases
"Net 30 business days" from an invoice date.
"14 business days to return an item."
"Delivery in 5–7 business days."
Notice periods, filing deadlines, and statutory time limits.
Service-level agreements that specify response or resolution in business days.
Country coverage
We support all 166 countries in the Nager.Date public holiday database. Popular countries include the United States, United Kingdom, Canada, Australia, Germany, France, Ireland, New Zealand, Sweden, Netherlands, Spain, and Italy. Each country uses its correct weekend configuration and national holiday calendar.
Frequently asked questions
Do business days include weekends?
No. Business days are Monday through Friday only. Weekends (Saturday and Sunday, or Friday and Saturday in some countries) are always excluded.
Are public holidays counted as business days?
No. Public holidays are excluded by default. You can toggle this off if you only want to skip weekends.
What is the start date convention?
The start date is day 0. For example, "3 business days after Monday" lands on Thursday (assuming no holidays).
Which countries are supported?
We support all 166 countries covered by the Nager.Date public holiday API, with correct weekend definitions for each country.
Are regional or state holidays included?
Not by default. Only national (country-wide) public holidays are counted. Regional holidays are planned for a future update.
What's 10 business days from today?
Select today's date, enter 10 business days, choose your country, and the calculator will give you the exact date including any holidays.