Business Days Calculator - Calculate Business Days Between Dates
Calculate business days (weekdays) between two dates. Excludes weekends automatically. Essential for project planning, delivery estimates, and business scheduling.
Business Days Calculator
Calculate business days (weekdays) between two dates. Automatically excludes weekends (Saturday and Sunday). Essential for project planning, delivery estimates, business scheduling, and any calculation that needs to exclude weekends.
What Are Business Days?
Business days are weekdays:
- Included: Monday, Tuesday, Wednesday, Thursday, Friday
- Excluded: Saturday, Sunday
Note: This calculator doesn't exclude holidays. For holiday exclusions, you'd need to manually adjust.
Common Use Cases
Project Planning
Calculate work days for project timelines and deadlines.
Delivery Estimates
Estimate delivery times excluding weekends.
Service Level Agreements
Calculate response times and resolution deadlines.
Payroll
Calculate work days for pay periods.
Examples
Example 1: One Week
Start: Monday, End: Friday
Business Days: 5
Total Days: 5
Weekends: 0
Example 2: Two Weeks
Start: Monday, End: Next Friday
Business Days: 10
Total Days: 14
Weekends: 4
Example 3: Month
Start: First Monday, End: Last Friday
Business Days: ~22 (varies by month)
Total Days: ~30
Weekends: ~8
Business Days vs. Calendar Days
Calendar Days
Includes all days, including weekends:
- 7 days = 1 week
- 30 days = ~1 month
Business Days
Excludes weekends:
- 5 business days = 1 week
- ~22 business days = 1 month
Standard Business Week
Most businesses operate:
- Monday - Friday: 5 business days
- Saturday - Sunday: Weekend (excluded)
Holidays
This calculator doesn't exclude holidays. Common holidays that might be excluded:
- New Year's Day
- Independence Day
- Thanksgiving
- Christmas
- And other federal/state holidays
For exact calculations with holidays, manually subtract holiday days from the result.
Tips for Using Business Days
- Use for work estimates: More accurate than calendar days
- Consider holidays: Manually adjust for holidays if needed
- Check time zones: Ensure dates are in correct time zone
- Verify weekends: Confirm which days are weekends in your region
Business Days in Different Contexts
Shipping
"5-7 business days" means 5-7 weekdays, excluding weekends.
Banking
Transactions often process on business days only.
Legal
Many legal deadlines are calculated in business days.
Converting Business Days
To convert business days to calendar days:
- Add weekends: ~2 days per week
- 5 business days ≈ 7 calendar days
- 10 business days ≈ 14 calendar days
- 20 business days ≈ 28 calendar days
Planning Tip: When planning projects or estimating delivery times, always use business days rather than calendar days. This gives you a more accurate timeline since work typically happens on weekdays. Remember to account for holidays separately if they're relevant to your calculation!