How do you change the clock in a 2012 Chevy Malibu?

To change the clock in a 2012 Chevy Malibu, turn on the ignition without starting the engine. Press the "Menu" button on the radio, then use the tuning knob to navigate to the "Clock" settings. Once there, adjust the hour and minute using the knob, and press "Enter" to save your settings. Finally, exit the menu to return to normal radio operation.