changing clock time

[Joe-A3]

How do you change the time on these A3. I have gone to clock but all it has is on or off

 

[LEE69]

ignition on pull the button under the clock area it will start to flash rotate it clockwise iirc to advance the hour each pull of the button will move it to the next segment

 

[Joe-A3]

Thanks i will give it a go