The Calendar-Calculator is a calendar which calculates a number of week-days and holidays between two input dates. Our new Calcal version allows you: - to mark single dates as holidays (e.g. New Year, Xmas) - to mark dates as holidays according your schedule (e.g. Suturdays and Sundays); - to calculate how many holidays and week-days are between two input dates; - to save and print any-year-calendar (including your marked dates) in different file-formats (incl. HTML).