Abstract: An in-vehicle apparatus is disclosed. The in-vehicle apparatus is configured to perform a timer operation, acquire vehicle state information, and control the timer operation of the timer means in such manner that: the in-vehicle apparatus starts the timer operation when determining based on the vehicle state information that a condition for starting the timer operation is satisfied; and the in-vehicle apparatus stops the timer operation when determining based on the vehicle state information that a condition for stopping the timer operation is satisfied.