Does this account for public holidays automatically?

No — public holidays differ by country and region, so there's no universal list to assume. Add any holiday dates you want excluded in the optional field, one per line.

Are the start and end dates both included?

Yes — if both fall on weekdays, they're each counted as one working day in the total.

What format should I use for the holiday dates?

Enter each holiday date on its own line, matching the same date format used for the start and end date fields, so the tool can match and exclude them correctly.

Does it handle date ranges spanning multiple years?

Yes — the calculation works the same way regardless of how long the range is, whether it's a few days or spans across calendar years.

What if the start date is after the end date?

Enter the earlier date as the start date and the later one as the end date — the calculator expects the range to run forward in time to produce a meaningful working-day count.

Date, Time & Everyday Utilities Cluster

Work Days Calculator

Count business days between two dates, excluding holidays.

TL;DR: Work Days Calculator is a free, browser-based tool that lets you count business days between two dates, excluding holidays.

Start date

End date

Holidays to exclude (optional, one per line, YYYY-MM-DD)

What Is the Work Days Calculator?

The Work Days Calculator calculates calendar intervals, time differences, working days, and chronological milestone countdowns with timezone and leap year awareness.

Step-by-Step: Using This Calculator

Select your start date/time and end date/time using the interactive date pickers.
Configure options: include/exclude end dates, exclude weekends, and filter public holidays.
View the calculated duration in days, weeks, months, hours, and minutes.
Copy or share the calculated date interval.

Mathematical Formula & Methodology

Here is the standard mathematical equation used to calculate this result accurately:

\text{Business Days} = \text{Total Calendar Days} - \text{Weekends (Sat/Sun)} - \text{Public Holidays}

Formula Variables Explained:
Calculates net business working days between two dates for project milestones and payroll.

Step-by-Step Worked Example

Between Sept 1, 2026 and Sept 30, 2026 (30 calendar days): 22 working days and 8 weekend days.

Maximize Your Results

Leap Year & Month Lengths: Automatically accounts for 28, 29, 30, and 31-day month lengths and Gregorian leap years.
Business Day Calculations: Essential for project managers tracking working sprint durations and contract delivery deadlines.
Timezone Differences: Calculations are computed relative to your local browser timezone.

Related Guides & Tutorials

Freelance Hourly Rate Calculator — Learn in-depth concepts, best practices, and expert tips.
Percentage Calculator Guide — Learn in-depth concepts, best practices, and expert tips.

100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: No — public holidays differ by country and region, so there's no universal list to assume. Add any holiday dates you want excluded in the optional field, one per line.
: Yes — if both fall on weekdays, they're each counted as one working day in the total.
: Enter each holiday date on its own line, matching the same date format used for the start and end date fields, so the tool can match and exclude them correctly.
: Yes — the calculation works the same way regardless of how long the range is, whether it's a few days or spans across calendar years.
: Enter the earlier date as the start date and the later one as the end date — the calculator expects the range to run forward in time to produce a meaningful working-day count.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). Work Days Calculator [Software]. https://nexlove.org/tools/work-days-calculator.html

“Work Days Calculator.” NexLove.org, 2026, nexlove.org/tools/work-days-calculator.html.

NexLove.org (2026) Work Days Calculator. Available at: https://nexlove.org/tools/work-days-calculator.html (Accessed: 2026).

@misc{nexlove_work_days_calculator,
  title = {Work Days Calculator},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/work-days-calculator.html}
}

Embed This Tool

Add the live Work Days Calculator tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/work-days-calculator.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="Work Days Calculator — NexLove.org" loading="lazy"></iframe>

Understanding the Work Days Calculator

This calculator provides instant, client-side computations designed for precision and ease of use.

Key Benefits

Instant Execution: No page reloads required. The math is calculated dynamically as you type.
Private & Secure: No financial, personal, or numerical data is transmitted. All calculations run in your browser's memory.

Disclaimer: While we strive for absolute accuracy, the Work Days Calculator should be used for informational purposes. Always verify critical calculations with a licensed professional where applicable.

Related Date, Time & Everyday Utilities Calculators

Standard Deviation Calculator

Time Zone Converter

Browse all Calculators