| 摘要 |
A navigation device, in a case where a destination candidate is deleted, postpones the deletion by providing a deletion deadline for the destination candidate. This makes it possible to search for the destination candidate even if it is eligible for deletion. If a user sets as the destination a destination candidate whose deletion has been postponed, the destination candidate is displayed differently to make the user aware that the deletion has been postponed. If a destination candidate for which the deletion deadline has been set is set as the destination, the navigation device compares the deletion deadline to a date that is m months after the current date, and if the m months later date is later than the deletion deadline, the navigation device extends the deletion deadline by updating it to the m months later date. This postpones the deletion of a destination candidate that the user considers necessary.
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