What Are Working Days? Definition, Variations & Why They Matter

Working days (or business days) are the days when businesses and government offices operate normally.

Standard Definition

• Most countries: Monday–Friday, excluding public holidays.
• Some countries: Saturday included (e.g., parts of Middle East, historically some sectors).

Why They're Important

• Contracts & deadlines: "10 business days" excludes weekends/holidays.
• Payroll & leave: Calculates accruals, overtime, notice periods.
• Shipping & logistics: Carriers schedule deliveries on business days.
• Legal proceedings: Filing windows, response times.

Examples in Practice

• A lease signed Friday takes effect Monday (next business day).
• An employee has 5 business days to file a grievance after an incident.
• Invoice terms "Net 30" mean 30 calendar days, but payment processing follows business days.

Always confirm the applicable calendar—especially across borders.