"..nor the Son."

 Mark ch.13:32 NASB"But of that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father alone." 

Our Trinitarian (and Modalist) friends wave away the obvious problem this verse creates for their doctrine by claiming that Jesus was speaking from the Son's then human standpoint.

 But is this view in harmony with the context of the verse itself ,lets have a look.The verse begins 

"But of that day and hour no one knows.."  

Obviously meaning no human knows (BTW was Jesus merely saying that no human at that time knew or that no human has ever known and will ever know.), thus if Jesus was speaking purely in terms of the Son's then human existence surely this part of the verse would have covered that. 

BTW :some trinitarians claimed that Jesus reclaimed the human body that he was supposed to have sacrificed upon his resurrection,which would mean that he is still human which, according to them, must mean that he is still not omniscient.

Then to illustrate the utter futility of anyone on earth attempting to calculate the 'day or hour' he continues.

",not even the angels of heaven.."

(again did Jesus mean that no angel presently knows or that no angel has ever and will ever know?) ,now, having made it clear that heaven itself was in the dark re:the Father's determination in this matter does it make sense for Jesus to belabor Earth's ignorance? Certainly what no angel knows no human would.

Why then not allow the verse to interpret itself 

"nor the Son,But the Father ALONE."  

i.e not even this eldest sibling in Jehovah's family of servants has ever known or will ever know. 

Acts1,6,7NASB " So when they had come together, they were asking Him, saying, “Lord, is it at this time You are restoring the kingdom to Israel?” 7He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority;"

Though his apostles were understandably curious about Jehovah's timing re:the Kingdom the resurrected (hence superhuman) Jesus indicated that the Father had chosen to keep the decision to himself.

 It does not seem that Jesus felt belittled by his Father's decision so it's odd that there are those who seem determined to take offense in his behalf.

 The bottom line then 

John ch.14:28 KJV "Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I. " 

PS. 0ne more thing,a good question deserving of a straight answer would be ,why does the Holy Spirit not know the day or the hour,better yet why is the Holy Spirit not even mentioned in this verse.I mean the verse (quite literally) mentions everyone else.