Date Difference Calculator
Calculate calendar days, business days, and calendar-unit differences, or add and subtract dates.
Date difference
Add or subtract dates
About Date Difference Calculator
Calculate calendar days, business days, and calendar-unit differences, or add and subtract dates. Processing happens locally in your browser, and the tool does not upload the entered content.
Privacy and compatibility
Results depend on browser capabilities and the supplied input. Review generated output before using it in production or formal documents.