Say (Muhammad): The knowledge of it is only with my Lord; none but He shall manifest it at its time; it will be momentous in the heavens and the earth; it will not come on you but of a sudden.
They ask you as if you could be well informed about it. Say: Its knowledge is only with God, but most of mankind know not.
The Quran, 007.187
Tag: Final, Judgment Day, Knowledge of Final Hour, Islam