Workday & Deadline Calculator — Free Business Day Tool

Workday & Deadline Calculator

Calculate business-day deadlines, working days between dates, and recurring schedules. Customize nonworking days and holidays.

Calculate a business-day deadline

Nonworking weekdays
Holidays are entered manually. No country-specific holidays are assumed.

How calculations work

Business days exclude your selected nonworking weekdays and holiday dates. When adding or subtracting days, the start date is not counted; counting zero days returns the start date. Date-range counting can include or exclude both endpoints. Recurring dates use calendar-day intervals and are shifted forward to the next working day when necessary.

This tool is for planning only. Legal, payroll, tax, and contractual deadlines can follow jurisdiction-specific rules. Confirm important dates with the appropriate authority.