Business Days Calculator
Start Date
End Date
A business days calculator counts working days between two dates, excluding weekends (Saturday and Sunday). Used for project timelines, delivery estimates, payment terms, and legal deadlines.
- 1Iterate through each calendar day between the two dates
- 2Skip days where getDay() returns 0 (Sunday) or 6 (Saturday)
- 3Count remaining days as business days
- 4For public holidays, subtract manually
Monday to Friday same week=5 business days
4 weeks calendar = 28 days=20 business days
30-day contract period=~21–22 business days
| Calendar Days | Approx Business Days | Notes |
|---|---|---|
| 7 | 5 | 1 week |
| 14 | 10 | 2 weeks |
| 21 | 15 | 3 weeks |
| 30 | 22 | 1 month approx |
| 60 | 43 | 2 months approx |
| 90 | 65 | 1 quarter approx |
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