Working Days Calculator

Calculate business days between dates, excluding weekends and holidays

Calculate Business Days

Count the number of working days between two dates

Add/Subtract Working Days

Find a date that is N working days away from a start date

Weekend Configuration

Select which days are considered weekends (non-working days)

Sun
Mon
Tue
Wed
Thu
Fri
Sat
Presets:

Holidays

Add holidays that should be excluded from working days calculations

Help

What are Business Days?

Business days (also called working days or weekdays) are days when normal business operations are conducted. Typically, this excludes:

  • Weekends (usually Saturday and Sunday)
  • Public holidays
  • Company-specific non-working days

Example: From Friday to next Monday is only 1 business day (Monday), as Saturday and Sunday are excluded.

Weekend Patterns

Different regions have different weekend patterns:

  • Saturday-Sunday: Most common (Americas, Europe, East Asia, Australia)
  • Friday-Saturday: Middle East (Saudi Arabia, UAE)
  • Other patterns: Can be customized for specific needs

Use the weekend configuration section to match your region or business needs.

Holiday Handling

Holidays are excluded from business day calculations:

  • Public holidays that fall on weekdays reduce business days
  • Holidays that fall on weekends don't affect the count (already excluded)
  • Some countries observe holidays on different days if they fall on weekends

Use the "Load US Federal Holidays" button for a quick start, or add custom holidays manually.

Adding/Subtracting Working Days

This feature helps you find deadlines or start dates:

  • Positive number: Finds a date in the future (e.g., deadline 10 business days from now)
  • Negative number: Finds a date in the past (e.g., when to start to finish by a date)

Example: If today is Monday and you add 5 business days, you get Monday of next week (skipping the weekend).

Working Hours Calculation

The calculator assumes a standard 8-hour workday:

  • Working Hours = Business Days × 8 hours
  • Useful for project planning and time tracking
  • Adjust mentally if your workday is different (e.g., 7.5 or 9 hours)
Common Use Cases

Project Planning:

  • Calculate project duration excluding weekends
  • Set realistic deadlines
  • Account for holidays in timeline

Legal/Compliance:

  • Notice periods (e.g., "30 business days notice")
  • Filing deadlines
  • Response windows

Business Operations:

  • Shipping/delivery estimates
  • Processing times
  • Payment terms
Tips and Best Practices
  • Always clarify whether "days" means calendar or business days
  • Keep your holiday list up to date
  • Consider regional differences for international projects
  • Document which holidays are included in calculations
  • Add buffer time for critical deadlines