I now think the Abomination of Desolation could start the Seven Years

Allow me to clarify what I mean.  The Man of Sin proclaiming himself God while sitting in The Temple in II Thessalonians 2, which I believe connects to events in Revelation 13, is certainly at the Midway Point of the Seven Years.

But I'm no longer convinced of the assumption that what Jesus meant by the "Abomination of Desolation" is the same as that event.  Jesus called it "The Abomination of Desolation spoken of by Daniel The Prophet".

Actually that they're distinct events is grammatically justified by that Paul's Man of Sin is sitting in The Temple while Jesus' Abomination is standing in it.  It know it might seem silly to quibble about that but I believe the details of God's Word are important.

Daniel never used that phrase of what Paul describes (a Man deifying himself), he used it of an Idol of Zeus Olympus being set up in The Temple.  And Upon reading Maccabees more closely I realized it wasn't even in the Holy of Holies, it was on the Brazen Altar.  Now one could argue Antiochus Epiphanes did deify himself, but that's not what the "Abomination the maketh Desolate" refers to in Daniel 11.

Revelation 13 does refer to an Image of The Beast, but I don't think that is what most people think it is.

In past studies on this Blog I've come to the conclusion that if Jerusalem is captured by a Gentile army during the end times, it marks the beginning of the Week, not the middle like people assume.  And I've talked about the possibility of a decoy Antichrist doing a decoy Abomination event.

I did a post where I argued the 1290 days ends with the Abomination of Desolation.  I'm no longer convinced of that argument, I'm having trouble clearly getting it from the Hebrew, and I've noticed the Preterists making that argument appeal to the Septuagint, which I object to.

That assumption remained in mind when I did my Calculations on the 70th Week post.  I'm also no longer convinced the 7 years of Revelation necessarily has anything to do with Daniel 9.

I do still believe that if those numbers in Daniel 12 are relevant to the End Times at all (I believe that can apply to Antiochus's Abomination, I just don't know how, but it most likely involved history beyond the first Hanukkah and Antiochus' death).  That the 1290 days are the first half and the 1335 days the second half.  With the point where they meet being the Yom Teruah on which The Rapture will happen.  The 1290 days would begin in Nisan if the first half has a Second Adar, and the 1335 days would end on or near Pentacost, which I think will formally begin the Millennium a couple months after The Beast is defeated.

That would put the beginning of the ministry of the Two Witnesses in Iyar rather then Nisan as I thought before.  But I have reason to see Iyar as prophetically significant.

I think this Abomination of Desolation will be performed by a Decoy Antichrist.  And later the actual Antichrist and False Prophet will present themselves as saving the world (or at least Israel) from him.

The "Great Tribulation" I still think refers to all Christian persecution, but now I can argue the escalation of it Matthew 24 describes applies to the first half of the 7 years, not the second.

Now it's also possibly it could be distinct but still happen at broadly the Mid-Way point.  I'm continually revising my theories as I study the Word.