There are several synonyms for the phrase "twelve o'clock night" which can be used to describe the late hours of the day. The most common and traditional term is "midnight," which is commonly associated with a witching hour or a time of magic. Other synonyms include "the stroke of twelve," "the witching hour," or "the dead of night." There is also the more colloquial "twelve am" or "midnight hour." Whatever term is used, they all convey the sense of a time that is dark, mysterious, and foreboding, when anything is possible, and the world takes on a different kind of energy.