Working Days Between Dates Calculator
Calculate the number of working days excluding weekends between two dates.
📅 Date & Time📐 Work Days = Calendar Days - Weekends
Start year
Start month 1-12
Start day
End year
End month
End day
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Working Days Between Dates Calculator | Work Days = Calendar Days - Weekends | work days |
Step-by-Step Examples
Example 1
Q1 2025
Jan 1 to Mar 31, 2025.
- Calendar: 89 days | Work days: ~64
✓ ~64 working days in Q1
Example 2
2-Week Project
Jan 6 to Jan 17, 2025.
- 14 calendar days | 10 working days
✓ 10 working days
Example 3
3-Month Notice
Jan 1 to Apr 1, 2025.
- 91 calendar | ~65 work days
✓ ~65 work days
Real-World Applications
Project Managers
Calculate business days for scheduling.
Legal
Count business days for deadlines.
Finance
Calculate settlement dates and payment windows.
HR
Calculate notice periods and leave duration.
Common Mistakes to Avoid
⚠️
Not excluding holidays
Remove ~10 US federal holidays manually for precise counts.
⚠️
Assuming same weekends globally
Some countries use Friday-Saturday weekends. Verify applicable jurisdiction.
Frequently Asked Questions
Working days in a month? ▾
Average: ~21-22 work days per month.
Working days in a year? ▾
252 working days in a typical US year.
What counts as a business day? ▾
Monday-Friday, excluding weekends and public holidays.