How do you change time on the clock of 2004 clk?

To change the time on a 2004 Mercedes-Benz CLK, first, turn the ignition on without starting the engine. Then, locate the clock button, usually found on the center console or dashboard. Press and hold the "CLK" or "SET" button until the hours begin to flash, then use the "+" and "-" buttons to adjust the hour. Press the "CLK" or "SET" button again to switch to minutes and adjust accordingly, then press the button once more to save the settings.