Consider the following biblical references
Isaiah 55:8-9. New International Version. 8 “For my thoughts are not your thoughts, neither are your ways my ways,”.
Matthew 24:36-44 No One Knows That Day and Hour
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Those two pasages clearly state that no one can know when except the Father.
Jesus was concerned about fulfilling the prophecies of the Old Testament.