Date Difference Calculator
Find the exact difference between two dates — including working days.
Sunday, May 10, 2026
Tuesday, June 9, 2026
Include working days count
About this tool
This calculator computes the precise difference between two dates using calendar-accurate logic — accounting for different month lengths and leap years. Unlike simple division-based calculators, the result correctly handles February, 31-day months, and year boundaries.
What are working days?
Working days (also called business days) count only Monday through Friday, excluding weekends. Useful for project deadlines, invoice due dates, and SLA calculations. Public holidays are not excluded as they vary by country.