Witching hour

In folklore, the witching hour or devil's hour is a time of night that is associated with supernatural events, whereby witches, demons and ghosts are thought to appear and be at their most powerful. Definitions vary, and include the hour immediately after midnight, and the time between 3:00 am and 4:00 am. The term now has a widespread colloquial and idiomatic usage that is associated with human physiology and behaviour to more superstitious phenomena such as luck.