工作日计算器

计算日期之间的工作日（排除节假日）

最后验证： 2026年2月精度已验证

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日期与时间

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Start Date

End Date

Include end date in calculation

Exclusion Mode

Exclude weekends & federal holidays

Standard business days

Exclude weekends only

Count holidays as working days

Exclude federal holidays only

Include weekends

Include all days

Calendar days only

Custom

Choose which days to exclude

Holiday Set

Add Custom Holidays (optional)

US Federal Holidays (2026)

• New Year's Day - Jan 1

• MLK Jr. Day - 3rd Mon in Jan

• Presidents' Day - 3rd Mon in Feb

• Memorial Day - Last Mon in May

• Juneteenth - Jun 19

• Independence Day - Jul 4

• Labor Day - 1st Mon in Sep

• Columbus Day - 2nd Mon in Oct

• Veterans Day - Nov 11

• Thanksgiving - 4th Thu in Nov

• Christmas - Dec 25

* When a holiday falls on Saturday, it's observed on Friday. When it falls on Sunday, it's observed on Monday.

来源与方法

公式： Business Days = Total Days - Weekends - Holidays

Excludes Saturdays, Sundays, and federal holidays

来源： US Federal Holiday Schedule

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How to Calculate Business Days Between Dates

The Business Days Calculator counts working days between two dates, automatically excluding weekends (Saturday and Sunday) and optionally US federal holidays. This is essential for project planning, contract deadlines, payroll processing, and shipping estimates.

What Are Business Days?

Business days (also called working days or weekdays) typically refer to Monday through Friday when most businesses operate. Our calculator excludes weekends by default and can optionally exclude US federal holidays like New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas.

Common Use Cases

Contract deadlines: "Payment due within 30 business days"
Shipping estimates: "Ships within 3-5 business days"
Legal deadlines: Court filings and response periods
Project planning: Realistic work timelines
Payroll: Processing time for direct deposits

Calendar Days vs Business Days

A 30-day period contains roughly 21-22 business days depending on weekend placement. A "30 business days" deadline is approximately 6 weeks of calendar time. Use our days between dates calculator for total calendar days.

Related Date Calculators

Add business days to a date with our business date calculator. Plan events with the countdown calculator or schedule across time zones with the meeting planner.