1. What is Business Days Calculation?

Business days calculation determines the number of working days between two dates, excluding weekends and specified holidays. This is essential for project planning, service level agreements, and financial calculations.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Total Days} \) — Calendar days between start and end dates (inclusive)
• \( \text{Weekends} \) — Saturdays and Sundays
• \( \text{Holidays} \) — User-specified dates to exclude

Explanation: The calculator iterates through each day in the range, counting only weekdays (Monday-Friday) that aren't in the holiday list.

3. Importance of Business Days Calculation

Details: Accurate business day calculation is crucial for project timelines, contract terms, service level agreements, financial calculations, and legal deadlines.

4. Using the Calculator

Tips: Enter valid start and end dates (end date must be after start date). For holidays, enter dates in YYYY-MM-DD format, separated by commas.

5. Frequently Asked Questions (FAQ)

Q1: Are weekends always Saturday and Sunday?
A: Yes, this calculator assumes a standard Monday-Friday work week. For other work weeks, custom calculation is needed.

Q2: How should I format holiday dates?
A: Use YYYY-MM-DD format (e.g., 2023-12-25) and separate multiple dates with commas.

Q3: Does the calculator include the start and end dates?
A: Yes, both start and end dates are included in the calculation if they are business days.

Q4: What if my holidays fall on weekends?
A: The calculator automatically excludes weekends, so weekend holidays won't be double-counted.

Q5: Can I use this for international calculations?
A: Yes, as long as you provide the appropriate holidays for your country/region.