NAVIGATION APPARATUS, POSITION INFORMATION REGISTRATION METHOD AND PROGRAM THEREOF

A navigation apparatus that includes a position information acquiring unit acquiring position information of a parking position; a parking information acquiring unit acquiring information as to a parking time in the parking position; and a memory storing the position information acquired by the position information acquiring unit when it is judged on the basis of the information as to the parking time acquired by the parking information acquiring unit that its parking time exceeds a predetermined time.