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Working & Business Days Calculator

Calculate the exact number of business days (working days) between two dates. Exclude standard holidays, add custom holidays, and download detailed reports.

📅 Select Date Boundaries

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🛠️ Exclude Holidays & Custom Dates
Scope Calculation Results
Work Project Scope
22Business Days
9Weekends
0Holidays
Working Ratio (% of Total Calendar Days):71%
⚡ Quick Business Presets:

📊 Calendar Decompositions

Total Calendar Days
31
Total Span
Working Days
22
Mon-Fri (excl. hols)
Weekend Days
9
Saturdays & Sundays
Excluded Holidays
0
Weekday Holidays

💡 Calendar & Business Day Facts

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Standard Working Year
A normal calendar year contains between 260 and 262 working days.
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5-Day Origin
Henry Ford popularized the 5-day workweek in 1926 to increase employee productivity.
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Robert Owen's Slogan
The 8-hour workday was coined in 1817: "Eight hours labor, recreation, and rest."
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Federal Holidays
There are exactly 11 official Federal holidays observed in the United States.
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Weekend Total
Every standard calendar year contains exactly 104 Saturdays and Sundays.
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Working Ratio
Working days generally account for 71.4% of the calendar days in a year.
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Quarterly Days
Each business quarter has roughly 60 to 66 working days.
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Most Holidays
Cambodia has some of the most public holidays worldwide, often exceeding 28 days.
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Continuous Operation
Global operations run 365 days a year, unaffected by standard business cycles.
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Gregorian Correction
In 1582, Pope Gregory skipped 10 days in October to align solar cycles.
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Epoch Day One
The Unix Epoch clock began on a Thursday (January 1, 1970).
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First Wall Calendar
The Gutenberg press printed the first physical wall calendar in 1448.
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Egyptian Solar Calendar
One of the first solar calendars dates back to 2500 BCE in Ancient Egypt.

📋 Recent Calculations

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Overview & Capabilities

Manage deadlines and schedules efficiently. Compute how many working days fall between any two dates, with custom options to exclude weekends and federal holidays.

Tutorial

How to Use

01
Select the Start and End dates using the calendar input fields.
02
Review and check/uncheck the holidays to exclude from the calculation.
03
Add custom dates (e.g. state holidays, corporate closures) using the Custom Holiday field.
04
View the detailed results: working days, weekend count, and working ratio percentage.
05
Use presets to add or subtract 30, 60, 90, or 180 working days instantly.
Capabilities

Key Features

**Interactive Calendar**: Easily pick start and end boundaries.
**Holiday Checklist**: Preloaded with US Federal holidays.
**Custom Exclusions**: Add as many custom holidays or closures as needed.
**Text Export**: Download complete schedules and summaries as a `.txt` report.
**Preset Quick-Adders**: Push timelines forward or backward by standard business lengths.
Applications

Common Use Cases

Project Management: Estimating business delivery dates.
HR & Payroll: Calculating total working days for salary verification.
Legal Contracts: Counting legal notice days or expiry bounds.
Personal Goals: Setting habit timelines excluding weekends.
Guidance

Tips & Best Practices

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Add corporate winter shut-downs as custom holidays to keep project timelines accurate.
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Use the Export button to attach a detailed audit of days to your team's timeline documentation.
Ecosystem

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Answers

Frequently Asked Questions

Q What is considered a business day?

A business day is typically Monday through Friday, excluding standard national/state holidays.

Q Can I count backwards?

Yes, if the start date is after the end date, the calculator automatically swaps them to calculate the distance.

Q Does it save my custom holidays?

Yes, custom holidays are saved locally in your browser's secure cache so they remain when you reload.