An in-vehicle information apparatus presents, to a user, information which includes
a returning route. The apparatus includes: a home position holding unit for holding
beforehand a position of the user's home; a home arrival time holding unit for
holding beforehand the user's home arrival time; a present position obtainment
unit for obtaining the user's present position; a present time obtainment unit
for obtaining a present time; a route search unit for obtaining a returning route
from the present position to the user's home position, a required time for the
returning route, and a departure time to leave the present position so the user
can get home by the home arrival time; and a presentation unit for comparing the
obtained departure time and the present time, and presenting to the user the departure
time and the returning route obtained by the route search unit, before the departure
time is passed.