The last thing Jesus said before his ascension;
Act 1:7-9 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. 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. And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight.
To quote an infamous politician.....'does it really matter?' With respect to the one who asked the question what if we knew the exact day of Christ's return....would it change anything? We have all kinds of grand and glorious promises from the scriptures that are clear. I'm not sure that the question being asked is knowable or what good it would do to know it.
We know that the world seems to be spiraling into a dark abyss and that is something we should be expecting as the time for Christ's return gets closer. And we certainly are nearer to that day than when we first believed. God is in full charge of these days and times and nothing is going to happen which isn't a necessary part of that plan. As I remind myself daily (and sometime several times daily) that if there was a better way for God to bring his will to pass for creation and human beings in particular then he would do it that way.
It is enough I think!.