What is the next business day?
The next business day is the next date after a starting point that qualifies under your business calendar, usually a weekday that is not an excluded holiday.
Basic rule
Start with the date after the current date. If it is Saturday or Sunday, skip it. If your calendar excludes a holiday and that date is a listed holiday, skip it as well. The first remaining date is the next business day.
Under this rule, Friday's next business day is usually Monday. If Monday is an observed federal holiday, the next business day may be Tuesday. If the starting date is a holiday, the next business day is still found by moving forward to the next qualifying date.
Why context matters
A bank, employer, state agency, or contract may use a calendar that differs from a general federal-holiday calendar. For general planning, weekday plus federal-holiday logic is a useful baseline. For payments, payroll, or regulated deadlines, check the official schedule that applies.
Related calculation
Finding the next business day is the same as adding one business day when the start date itself is not counted. For larger offsets, use an add-business-days calculator so each skipped weekend or holiday is handled consistently.