Assist device in designation of destination

A device for assisting designation of a specific destination in use of a vehicle navigation system that guides a user along a drive route from a current position of a vehicle detected by a current position sensor to a designated destination, comprising:

• destination storing means for storing destination data;
• date-and-time sensor means mounted in the vehicle for detecting current date and time;
• drive purpose acquiring means for acquiring the user's purpose of drive;
• user-related data storing means for storing user-related data;
• retrieval condition determining means for determining a specific combination of retrieval conditions applicable to retrieval of destinations, with reference to the current date and time detected by said date-and-time sensor means, the user's purpose of drive acquired by said drive purpose acquiring means and the user-related data stored in said user-related data storing means;
• destination candidate selection means for retrieving, from the destination data stored in said destination storing means, destinations that satisfy the specific combination of retrieval conditions determined by said retrieval condition determining means;
• output means for outputting the retrieved destinations;
• and
• final destination selection means for allowing the user to select at least one of the retrieved destinations.