Business day calculator

Pick a country and the calculator uses its public holidays and weekend. Count the working days in a period, or find the date N business days later or earlier.

Both the start and end dates are included.

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How business days are counted

Official
Matches the government’s official announcement or data
Rule
Computed from the legal rules (not yet checked against official data)
Estimated
Not yet announced, or depends on moon sighting and may change

Weekends by country

Most countries rest on Saturday and Sunday, but much of the Middle East takes Friday and Saturday, and Iran only Friday. The calculator uses each country's own weekend.

Weekend on Friday and Sunday

Weekend on Friday

Weekend in Nepal: Saturday ; from Mon, April 6, 2026: Saturday and Sunday

Countries with make-up workdays

Some countries move working days onto weekends to create longer holidays (China's tiaoxiu, Russia, Vietnam and others). Those weekend days count as business days.

The same calculation for AI and APIs

Add this site's MCP server to your AI assistant (such as Claude) and it answers with the same business_days calculation as this page. Each country's holidays are also available as JSON.

business_days {"country":"US","start":"2026-02-01","add":10}