Business & Working Days Tool

Business Days Calculator — Count Working Days

Count working days between any two dates. Automatically excludes Saturdays and Sundays to help you plan project milestones, sprints, and payroll periods.

Quick Presets:

Start Date

End Date

Include end date (add 1 full day)

How Business Days Calculation Works

A business day (or working day) refers to any official workday from Monday through Friday. Saturdays and Sundays are classified as weekend days and are automatically excluded from working duration calculations. In corporate environments, calculating business days is essential for sprint planning, financial clearing, and HR compliance.

Step-by-Step Instructions

Select Start Date: Enter the beginning date of your working period.
Select End Date: Choose your target deadline or completion date.
Calculate Duration: Click Calculate Days to view total working business days alongside total calendar days.
Include End Date (Optional): Toggle if the final day should be included as a full active working day.

Average Business Days per Month (2026 Reference)

Month	Calendar Days	Weekend Days	Working Business Days
January	31	9	22
February	28	8	20
March	31	9	22
April	30	8	22
May	31	10	21
June	30	8	22

Key Applications

Agile Sprints & Software Delivery: Estimating developer capacity over two-week (10 business day) sprints.
Service Level Agreements (SLAs): Measuring response windows (e.g., "resolves within 3 business days").
Banking & ACH Settlements: Wire transfers and check clearing operate strictly on non-weekend banking days.
HR & Payroll Processing: Calculating PTO accrual and active working days per pay period.

Frequently Asked Questions

Are weekends included in business days? ▼

No. Standard business days only count Monday, Tuesday, Wednesday, Thursday, and Friday. Saturdays and Sundays are excluded automatically.

Should I include the end date in the count? ▼

By standard convention, the start date is counted and the end date represents the deadline boundary. If your work continues through the final day, enable "Include end date" in the options.

Do business days include public holidays? ▼

Standard business day calculations automatically remove Saturdays and Sundays. Public bank holidays vary by country and region, so corporate contracts often specify whether federal holidays are excluded.

How many business days are in a month? ▼

A typical calendar month contains between 20 and 22 business days, depending on whether the month has 28, 30, or 31 total days and where weekends land.

Date & Time Utilities