JoneSoft Short To Long Date Converter - Version 1.0.2 Useful for genealogists and the like, this small program will return the day of any event. Just enter the date in short format (ie 7/10/1825) and the program will tell you the day (ie Friday). Learn what day your 5th great-grandparents were married. NOTE: All calculations in this version are based on the Gregorian calendar.