Working Days Calculator

Working days (also called business days) are weekdays — Monday through Friday — excluding weekends. They're used in professional and legal contexts where weekends don't count toward deadlines. Why it matters: If a contract says 'delivery in 5 business days' and you sign on Wednesday, the deadline is the following Wednesday — not Monday. Misunderstanding business day calculations causes missed deadlines and legal disputes. Public holidays: True working day calculations should also exclude public holidays. However, public holidays vary by country, region, and industry. This calculator counts weekdays without holiday exclusions — verify local holidays for precise legal deadlines. Common uses: Invoice payment terms (Net 30 business days), legal response deadlines, project planning and Gantt charts, employment notice periods, shipping and delivery estimates, HR leave calculations, and court-mandated timeframes. Tip: For legal or contractual deadlines, always confirm whether 'days' means calendar days or working days — the difference can be significant.