It is written…
And Yahshua went out, and departed from the temple: and his disciples came to him for to shew him the buildings of the temple.
2 And Yahshua said unto them, See ye not all these things? verily I say unto you, There shall not be left here one stone upon another, that shall not be thrown down.
3 And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only. (Matt 24:36)
When they therefore were come together, they asked of him, saying, Lord, wilt thou at this time restore again the kingdom to Israel?
7 And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power.