An in-vehicle information processing apparatus includes a first obtainment unit to obtain history information including time information on a mobile terminal from the terminal being connected with a vehicle that has the apparatus installed; a second obtainment unit to obtain reference time information; a calculation unit to calculate a time lag, in a state where the vehicle and the terminal are connected with each other for communication, after the terminal has established wireless communication with an external counterpart, between a first time included in the history information obtained when the wireless communication is executed, and a second time when the wireless communication is executed with reference to a reference time obtained by the second obtainment unit; and a correction unit to correct the history information obtained based on the time lag between the first and second times calculated by the calculation unit, when handling the time information on the vehicle.