Acts 1:
6 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. 8 But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.
Seems to me the Master gave some clear marching orders. Spread the Gospel.
At that time it wasn’t for them to know, but after he ascended, the end was at hand, and it was for all to study and know, and that is why all of the apostles preached keeping the feasts.
Yeshua was just deferring an irrelevant question with his answer.