How do you change the time on the clock on a 2004 Mercedes CLK?

To change the time on a 2004 Mercedes CLK, turn on the ignition without starting the engine. Press the "CLK" button on the radio or control panel, then use the "Tune" or "Seek" buttons to adjust the hours and minutes. Once the correct time is set, press the "CLK" button again to save the changes. If your model has a separate clock, you may need to adjust it using the corresponding controls on the dashboard.