An air-conditioner remote controller in an air conditioner system that includes the air-conditioner remote controller and an air conditioner that performs air-conditioning control using room temperature information received from the air-conditioner remote controller, includes: a storage unit to store room temperature information that is information on room temperature measured by a plurality of temperature sensors and store schedule information that sets, for each time zone, a temperature sensor to measure a room temperature to be used as room temperature information in the air-conditioning control of the air conditioner; and a control unit to perform control such that the room temperature information from the set temperature sensor is acquired from the storage unit and the acquired room temperature information is transmitted to the air conditioner in accordance with the schedule information.