Freightliner Argosy 2006 clock removal

hello all new to forum so hope this is correct place to ask..
Im wondering if someone can tell me how to remove the clock from the centre of the overhead consol in a 2006 Freightliner Argosy, I want to replace the bulb so I can see it in the dark, ive had the truck for 6months and it has never worked im presuming it would have a light in it?
I know the dash gauges twist out to remove but cannot seem to get clock out any help would be great thanks.
Matt