The verse in question is Daniel 9:27, and I have inserted notes for clarity:
And he [the prince that shall come = the Antichrist] shall confirm the covenant with many for one week [seven years]: and in the midst of the week [after 3 1/2 years] he shall cause the sacrifice and the oblation to cease [within the future temple at Jerusalem], and for the overspreading of abominations [the image of the Beast] he shall make it desolate, even until the consummation, and that determined [God's wrath] shall be poured upon the desolate.
There is no misunderstanding when you take all the connected prophecies in Daniel and Revelation and harmonize them. The first 3 1/2 years is the same as the 42 months assigned to the Beast and Satan:And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months. (Rev 13:5) This is the time when the Antichrist compels the inhabitants of the world to take the Mark of the Beast (Rev 13:14-18)
Now you have to take the subsequent desolations (devastations) which are triggered by the Abomination of Desolation, and place those within the next 3 1/2 years, which correspond to both the Great Tribulation and the Day of the LORD, as well as the 7th trumpet judgments (the seven vials or bowls). Which means that the reign of the Antichrist is over and God's wrath is poured out upon the world, following which the heavens and the earth are shaken, and the heavenly bodies moved out of their places .