According to Wikipedia, the witching hour is defined as a time (traditionally midnight) when creatures such as witches, demons and ghosts are thought to appear and to be at their most powerful. Black magic is also thought to be most effective at this time.
In our house, the witching hour is from 5 to 7pm. This is when everyone is starving all of the sudden. I am trying to cook dinner, help with homework all the while bath time is upon us and I’m hungry. Add trying pickup the house enough so that when my husband walks in it’s not a complete disaster.