Working Days Between Dates (Mon–Fri)

Working Days Calculator (Mon–Fri)

How to Use This Working Days Calculator

  1. Select the Start Date (the beginning of your date range)
  2. Select the End Date (the end of your date range)
  3. Click Calculate Working Days — see the number of working days (Monday to Friday) between the two dates
  4. Weekends (Saturday and Sunday) are automatically excluded

How Working Days are Calculated (Formula)

Working Days = Count of days from Start Date to End Date where Day of Week is Monday (1), Tuesday (2), Wednesday (3), Thursday (4), or Friday (5)

Saturday (6) and Sunday (0) are excluded.

Real Examples

Example 1 — Standard 5-day work week (Monday to Friday):

  • Start Date: Monday, June 1, 2026
  • End Date: Friday, June 5, 2026
  • Working Days: 5 days (Monday, Tuesday, Wednesday, Thursday, Friday)

Example 2 — 2-week period (includes weekend):

  • Start Date: Monday, June 1, 2026
  • End Date: Sunday, June 14, 2026
  • Working Days: 10 days (5 days/week × 2 weeks, weekends excluded)

Example 3 — Cross-month calculation:

  • Start Date: Friday, May 29, 2026
  • End Date: Monday, June 8, 2026
  • Working Days: 7 days (May 29, June 1-5, June 8 — excludes May 30-31 weekend)

Why Use This Working Days Calculator?

  • ✅ Simple & Fast — Just select two dates, get instant count
  • ✅ Excludes Weekends — Only counts Monday through Friday
  • ✅ Business/Project Planning — Calculate project timelines excluding weekends
  • ✅ Contract/Invoice Days — Count working days for billing or service agreements
  • ✅ Employee Leave Tracking — Calculate working days between leave dates
  • ✅ Free & Unlimited — No signup required
  • ✅ Mobile Friendly — Responsive design for phones, tablets, and desktops

Frequently Asked Questions

What is considered a working day?

In this calculator, working days are Monday through Friday (Monday=1, Tuesday=2, Wednesday=3, Thursday=4, Friday=5). Saturday and Sunday are excluded. The calculator does not account for public holidays — only weekends are excluded.

Does this calculator account for public holidays?

No — this calculator only excludes weekends (Saturday/Sunday). To exclude specific public holidays, you would need to manually subtract them from the result. For example, if your date range includes July 4th (US Independence Day), subtract 1 day from the result if it falls on a weekday.

How do I calculate working days excluding both weekends AND holidays?

For holiday-adjusted working days:
1. Use this calculator to get working days (Mon-Fri)
2. Count how many public holidays fall on weekdays within your date range
3. Subtract that number from the result
Example: 10 working days — 2 holidays = 8 actual working days

Why do I need to calculate working days?

Common use cases:
- Project management: Estimate completion dates based on business days
- Invoice/billing: Count business days for service charges
- Legal/contract deadlines: Many contracts specify "business days" not calendar days
- Employee timesheets: Track working days for payroll or attendance
- Shipping/delivery estimates: "5 business days" means exclude weekends

What if my work week is different (e.g., Sunday-Thursday)?

This calculator uses the standard Monday-Friday work week (common in US, Canada, Europe, Australia, and many other countries). If your work week is different (e.g., Sunday-Thursday in some Middle Eastern countries), you would need a modified version that excludes Friday and Saturday instead.

Related Date Calculators

Disclaimer: This working days calculator provides estimates for informational purposes only. It excludes weekends (Saturday/Sunday) but does not account for public holidays, company-specific holidays, or other non-working days. For legal or contractual deadlines, always verify with official calendars and consult appropriate resources.