1. Turn the ignition key to position 1 or 2.
2. Hold down the HR/DAT button on the dashboard for 5 seconds.
3. Press the h/DAT button to scroll through the hours of the day.
4. Press the m/DAT button to scroll through the minutes.
5. Press °C/°F to switch between a 12- and 24-hour clock.
6. Press Set to confirm.