如何计算Business Days
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A business days calculator counts working days between two dates, excluding weekends (Saturday and Sunday). Used for project timelines, delivery estimates, payment terms, and legal deadlines.
公式
business_days = total_days - weekends - holidays
- start
- Start date (date) — Beginning date
- end
- End date (date) — Ending date
- business_days
- Business days (days) — Excludes weekends and holidays
分步指南
- 1Iterate through each calendar day between the two dates
- 2Skip days where getDay() returns 0 (Sunday) or 6 (Saturday)
- 3Count remaining days as business days
- 4For public holidays, subtract manually
例题解析
输入
Monday to Friday same week
结果
5 business days
输入
4 weeks calendar = 28 days
结果
20 business days
输入
30-day contract period
结果
~21–22 business days
常见问题
What counts as a business day?
Typically Monday–Friday, excluding public holidays. Different regions and companies define holidays differently.
Should I include the start and end dates?
Conventions vary. Usually: include start, exclude end (or vice versa). Check your company's definition.
How do I account for company holidays?
The calculator should allow you to input custom holidays. Bank holidays, Christmas, and company shutdowns are common exclusions.
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