This is a quora anwer on 233 am no sauce but kind of interesting
Witching hour is a term in occult belief that refers to the time 12:00am, at which creatures such as witches, demons and ghosts are thought to appear and to be at their most powerful. Black magic is thought to be most effective at this time.
It is separate from the period of time known as "Dead Time" Which lasts from 12 AM to 1 AM, when there are no Catholic church services and prayers, as marked by the Canonical hours.
Adversely, the term Devil's hour applies to the hour of 2:33 AM, 3 AM or 3:33 AM, the suggestion being that this is an inversion of the time at which Christ died at Calvary.
The term may be used colloquially to refer to any arbitrary time of bad luck, or in which something bad has a greater likelihood to occur (e.g., a baby crying, a computer crashing, stock market volatility, crimes, etc.).
If you have seen a lot of horror movies then try to remember the time in their clock when Ghosts appear. The time is always between 12–3am, mostly 3am. It's as you read above is the inversion of the time at which christ died. These 12–3am is bad hours. Give bad luck.