How many business days are in a standard month?

A standard calendar month typically contains 20 to 22 working business days (roughly 160 to 176 working hours at 8 hours/day).

How many working days are in a typical year?

In a standard year (365 days), there are 260 weekdays (52 weeks × 5 days). After subtracting ~10 federal holidays, there are roughly 250 actual working days.

How does the calculator handle 6-day work weeks (Monday–Saturday)?

Select the '6-day work week' setting to include Saturdays as regular working days and exclude only Sundays.

Can I calculate total project billing hours with this tool?

Yes. Enter your billable hours per day to compute total working billable hours for project contracts.

Are both start and end dates included in the count?

By default, the calculator includes the start date and counts through the end date if they fall on working weekdays.

How are national public holidays accounted for in business day calculations?

The calculator computes total standard weekdays (Monday to Friday) and allows deducting custom observed federal/bank holidays.

Date & Time Cluster

Work Days Calculator (Business Days & Working Hours)

Calculate business days, working hours, and weekend counts between calendar dates.

TL;DR: Work Days Calculator computes the exact number of working business days between two dates, filtering out weekends and customizable statutory public holidays.

Start date

End date

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

How Do You Calculate Working Business Days Between Two Dates?

To calculate business days, count the total calendar days between start and end dates, subtract weekend days (every Saturday and Sunday, averaging ~2 weekend days per 7-day span), and subtract any recognized national public holidays falling on weekdays.

How to Use the Work Days Calculator

Our Work Days Calculator performs high-precision mathematical operations directly in your browser with zero latency and complete client-side privacy.

Enter the Start Date and End Date.
Select your standard working week (Monday–Friday 5-day week or 6-day week).
Optionally enter daily working hours (default is 8 hours/day).
Optionally input custom statutory holiday dates to exclude.
Click 'Calculate Work Days' to see business days, working hours, and weekend counts.

Mathematical Formula & Equations

Calculates net business working days between two dates for project milestones and payroll.

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

Calculation Example

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

100% Client-Side Privacy & Data Security

All calculations, amortization schedules, variables, and sensitive numerical datasets execute 100% locally in your web browser memory. Your financial, medical, and personal values are never transmitted, logged, or uploaded to any external server.

Frequently Asked Questions

: A standard calendar month typically contains 20 to 22 working business days (roughly 160 to 176 working hours at 8 hours/day).
: In a standard year (365 days), there are 260 weekdays (52 weeks × 5 days). After subtracting ~10 federal holidays, there are roughly 250 actual working days.
: Select the '6-day work week' setting to include Saturdays as regular working days and exclude only Sundays.
: Yes. Enter your billable hours per day to compute total working billable hours for project contracts.
: By default, the calculator includes the start date and counts through the end date if they fall on working weekdays.
: The calculator computes total standard weekdays (Monday to Friday) and allows deducting custom observed federal/bank holidays.

Cite This Calculator

Need to reference this online calculator in a financial proposal, academic paper, blog post, or classroom curriculum? Copy a citation below.

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

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

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

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

Embed This Tool

Add the live Work Days Calculator to your own website with this snippet — it loads the real, working calculator in an iframe.

<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>

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