My Bible says not even Jesus knows the day or the hour. That is good enough for me.
I do believe GOD is leaving it up to us when he comes back
however he does know when MAN will do that signaling his return, and we as human beings can know that season....
Bible Prophecy in the News : Rebuilding of the Jewish Temple
http://www.youtube.com/watch?v=JSKHV4-tA8w