Symbolism of the Ebony Clock
The ebony clock represents the amount of time that is remaining for the guests. The clock's chimes correspond with the seven colored rooms, each time it chimed it represented the passing of another stage of life. Eventually the clock strikes twelve midnight, the witching hour, at which point the people have passed into the final room; the black room that represents death. This is when the Red Death is revealed and all of the guests succumb to the disease and perish.