A positioning apparatus includes the following. A first oscillator outputs a clock signal. A second oscillator outputs a clock signal which is more accurate than the first oscillator. A receiver receives a radio wave from a positioning satellite. A positioning controller calculates a present position based on positioning information calculated from the received radio wave. The positioning controller controls switching of a supply source of the clock signal supplied to the receiver and the positioning controller between the first oscillator and the second oscillator depending on a reception status of the radio wave from the positioning satellite by the receiver.