工作日计算器
计算两个日期之间的工作日数，或查找从某个起始日期起指定工作日数后的日期。周六和周日始终排除在外。可选择同时排除美国所有 10 个联邦假日，包括马丁路德金纪念日、阵亡将士纪念日、感恩节和圣诞节。
Result
常见问题
两个日期之间有多少个工作日？
计算两个日期之间的工作日数，在上方的工作日计算器中输入开始日期和结束日期，然后点击「计算工作日」。计算器会统计范围内所有周一至周五的天数，排除周末和美国联邦假日。起始日期不计入；结束日期计入。
什么是工作日？
工作日是指非周六、周日或公共假日的任意工作日。在美国，工作日为周一至周五，不包括 10 个美国联邦假日：元旦、马丁·路德·金纪念日、总统日、阵亡将士纪念日、独立日、劳动节、哥伦布日、退伍军人节、感恩节和圣诞节。
如何从今天起计算工作日？
使用工作日计算器：点击日历图标将开始日期设为今天，在「增加工作日」模式中输入要增加的工作日数，计算器即时显示结果日期。周末和美国联邦假日会自动跳过。
从今天起 10 个工作日是哪天？
切换至「增加工作日」模式，将开始日期设为今天，在工作日字段输入 10，计算器会显示从今天起 10 个工作日后的确切日期——自动跳过周末和美国联邦假日。
一年有多少个工作日？
一个典型年份约有 252 个工作日。这是 365 个日历日减去 104 个周末日（52 个周六 + 52 个周日）再减去 9-10 个落在工作日的联邦假日。确切数字因年份而异，取决于哪些假日落在周末。
哪些美国联邦假日被排除在工作日计数之外？
计算器排除全部 10 个美国联邦假日：元旦（1 月 1 日）、马丁·路德·金纪念日（1 月第 3 个周一）、总统日（2 月第 3 个周一）、阵亡将士纪念日（5 月最后一个周一）、独立日（7 月 4 日）、劳动节（9 月第 1 个周一）、哥伦布日（10 月第 2 个周一）、退伍军人节（11 月 11 日）、感恩节（11 月第 4 个周四）和圣诞节（12 月 25 日）。
起始日期算作工作日吗？
不算。工作日计数从起始日期的第二天开始。这遵循标准法律和金融惯例——例如，如果你在周一收到合同并有 5 个工作日回复，第一个工作日是周二，截止日期是下一个周一。
能否在不排除假日的情况下计算工作日？
可以。关闭「排除美国联邦假日」开关，即可只计算非周末天数，不排除任何假日。这在你的组织不遵守所有联邦假日时，或你只想获得工作日总数时很有用。
What Are Business Days?
A business day(also called a workday or working day) is any day that is not a weekend (Saturday or Sunday) and not a public holiday. In the United States, the standard business week runs Monday through Friday. When contracts, shipping estimates, payment terms, or legal notices specify a number of "business days," weekends and US federal holidays are excluded from the count. This calculator counts business days between two dates, or finds the date that is a given number of business days after a start date.
US Federal Holidays
The US has 10 federal public holidays. Four fall on fixed calendar dates each year; six are observed on a specific weekday (e.g., the third Monday of January). When a fixed holiday falls on a Saturday, it is observed the preceding Friday; when it falls on a Sunday, it is observed the following Monday — though this calculator uses the actual calendar date rather than the observed date.
| Holiday | When | 2026 Date |
|---|---|---|
| New Year's Day | January 1 | Jan 1 (Thu) |
| Martin Luther King Jr. Day | 3rd Monday of January | Jan 19 (Mon) |
| Presidents' Day | 3rd Monday of February | Feb 16 (Mon) |
| Memorial Day | Last Monday of May | May 25 (Mon) |
| Independence Day | July 4 | Jul 4 (Sat) |
| Labor Day | 1st Monday of September | Sep 7 (Mon) |
| Columbus Day | 2nd Monday of October | Oct 12 (Mon) |
| Veterans Day | November 11 | Nov 11 (Wed) |
| Thanksgiving Day | 4th Thursday of November | Nov 26 (Thu) |
| Christmas Day | December 25 | Dec 25 (Fri) |
How to Count Business Days Between Two Dates
To manually count business days between a start date and an end date, advance one day at a time from the day after the start date through the end date, skipping Saturdays, Sundays, and any federal holidays that fall within the range. The start date itself is not counted — only the days after it up to and including the end date.
- Select Count Business Days mode at the top of the calculator
- Enter your Start Date (the start day is excluded from the count)
- Enter your End Date (this day is included in the count)
- Toggle whether to Exclude US Federal Holidays
- The result shows business days, total calendar days, weekend days, and holidays
Example: From Monday January 5, 2026 to Friday January 9, 2026 — the start date (Mon Jan 5) is excluded, so the counted days are Tue, Wed, Thu, Fri = 4 business days.
How to Add Business Days to a Date
Adding business days to a date means advancing forward, counting only Monday–Friday non-holiday days. This is useful when a contract gives you "5 business days to respond" or a shipment arrives "in 3–5 business days."
- Select Add Business Days mode
- Enter the Start Date
- Enter the number of business days to add
- Toggle whether to exclude US federal holidays
- The result shows the exact end date with the day of the week
Example: Adding 5 business days to Friday January 9, 2026 — the next business day is Monday Jan 12, counting Mon through Fri gives Friday January 16, 2026 as the result.
Business Days in a Year
A typical calendar year has approximately 252 business days. This is calculated as 365 days minus 104 weekend days (52 Saturdays + 52 Sundays) minus 9–10 federal holidays that fall on weekdays. The exact number varies each year depending on how many holidays fall on weekends:
| Year | Total Days | Weekend Days | Business Days |
|---|---|---|---|
| 2024 (leap) | 366 | 104 | 251 |
| 2025 | 365 | 104 | 251 |
| 2026 | 365 | 104 | 251 |
Note: The exact count depends on which federal holidays fall on weekdays vs. weekends in each specific year.
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