Below is my two cents' worth, from a past article:
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As to Matthew 24:36, some scholars point out that Jesus' words here are in the present tense, addressed to His hearers at the time, and not to those alive at the end of the age when Daniel's vision would be unsealed (Daniel 12:9). This would be similar to Matthew 16:20: "Then he warned His disciples not to tell anyone that He was the Christ." As evidence, many other Scriptures reveal to us that God will reveal at least the approximately time. (Even if the "day and hour" restriction is literally valid today, it may be because the Earth is in 24 time zones and always in two different days.)
 
Jesus also said, “but my Father only” knows, which pins the statement to His hearers at the time, when Jesus was still on the earth, because surely there are now no secrets in the Trinity between the Father and the glorified Son, who are truly One. Also, in context, He seems to be speaking of heaven and earth passing away (v. 35), not other end-time events. In addition, Jesus said, “If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee” (Revelation 3:3). He is obviously saying that to the one who watches, He will not come as a thief and that person will know the hour! (Hour -- Greek hora -- Strong’s 5610; various meanings, including, “any definite time, point of time, moment.”
 
GOD'S PROMISES OF REVELATION
 
1.      It is clear that Jesus will not come as a "thief in the night" for watchful believers, because in the very same passage, verse 4, Paul tells us, "But you, brothers, are not in darkness so that this day should surprise you like a thief." If we are trusting in Christ and looking for His coming, Paul said that even the very day does not have to surprise us!

2.      Also, Jesus exhorted, "If therefore thou shalt not watch, I will come on thee as a thief" (Revelation 3:3, KJV), obviously saying He will come as a thief only to those not watching!  It is obvious that for those watching, He will NOT come as a thief.

3.      Jesus rebuked those who did not understand the signs of the times in His day: "O ye hypocrites, ye can discern the face of the sky, but can ye not discern the signs of the times" (Matthew 16:3).

4.      Of the end of the age, Jesus said, "And when these things begin to come to pass, then look up, and lift up your heads; for your redemption draweth nigh"(Luke 21:28). He said we would know when it is near!

5.      God said, "Surely the sovereign Lord does nothing without revealing it to His servants the prophets" (Amos 3:7, NIV). God said "nothing," and He did not exclude Christ's return. I take Him at His word.

6.      God not only knows the end from the beginning, He tells us that He makes it known! "I make known the end from the beginning, from ancient times, what is still to come." (Isaiah 46:10). He has already made it known! I personally believe it has been hidden in His Word all along, to be unlocked in His timing.  There is nothing wrong with seeking!  No doubt, it pleases God.

7.      God said, "I have even from the beginning declared it to thee; before it came to pass I shewed it thee" (Isaiah 48:5, KJV).

8.      Jesus said the Holy Spirit "will teach you all things" (John 14:26). He said "all things." Did Jesus make a mistake, forgetting to exclude when He will return? I don't think so.

9.       Friends confide in one another.  Abraham was called God’s “friend” (Isaiah 41:8; James 2:23).  “And the LORD said, Shall I hide from Abraham that thing which I do” (Genesis 18:17).  Now, because of Jesus’ atonement, we are called friends of God: “I no longer call you servants, because a servant does not know his master’s business. Instead, I have called you friends” (Jesus, John 15:15).

10.  Ecclesiastes 1:9 says “What has been will be again, what has been done will be done again; there is nothing new under the sun” (NIV).  Many Bible students believe that ancient events and dating in the Bible are shadows and clues that foretell the coming of the Lord, even the timing.  An example is the six days of creation, seen as 6,000 years of man’s dominion over the earth, before the return of the Lord and the seventh, or Sabbath Millennium of peace, with Christ ruling in Jerusalem.  According to scholars, we are now at the end of 6,000 years since Adam
 
There are other such passages. God clearly promised that we would know at least approximately when Christ will return, and even "the day" will not surprise us, as the Holy Spirit reveals through Paul!
 
In addition, there is ample precedent for God revealing specific times in advance.
 
1.      He gave Noah advance notice of when the flood would be (Genesis 6,7).

2.      He told Abraham how long the Israelites would be in Egypt (Genesis 15:13).

3.      As mentioned, He revealed to many the very day of Elijah's rapture (2 Kings 2).

4.      He told Jeremiah how long the Babylonian exile would be (Jeremiah 29:10).

5.      He told Daniel exactly when Messiah would come the first time (Daniel 9:25-26).

6.      Some, including the brilliant Sir Isaac Newton, believe this same passage holds the key to the timing of His return.

7.      There is evidence that the Bible reveals the exact number of years of "the times of the Gentiles" and the exact span of time to Israel's rebirth in 1948 and the recapture of Jerusalem in 1967.
 
Obviously, leaving us clueless now would violate God's own established pattern as revealed in His Word!
 
Also obviously, we are not left clueless.  There are many signs.  Let us remain watchful and ready, and be found doing the Master’s work.
 
Jim