1799 A.D. – The beginning of the Last Days with the opening of the 6th seal.The 6th seal was opened in 1799 this resulted in the Ottoman Empire drying up world wars 1 and 2 the formation of the state of Israel
I would suggest that the end of the Dispensation of this evil world ends at 2067.
The Last Days a period of 268 years from 1799 to 2067 which ends at the Day of Yahweh’s Vengeance which is a very short period of time. This is the time that is short in Matthew 24, not cut short. Our Creator’s timing is perfect and does not need shortening or lengthening.
Matt 24:37 For just as the days of Noah were, so the coming of the Son of man will be. 38 For as they were in those days before the flood, eating and drinking, men marrying and women being given in marriage, until the day that Noah entered into the ark; 39 and they took no note until the flood came and swept them all away, so the coming of the Son of man will be
Gen 5:32 And Noah got to be five hundred years old. After that Noah became father to Shem, Ham and Japheth.
Gen 7:6 In the six hundredth year of Noah’s life on the seventeenth day of the second month–on that day all the springs of the great deep burst forth, and the floodgates of the heavens were opened.
This helps us to understand these words Yahweh declared: “My spirit shall not act toward man indefinitely in that he is also flesh. Accordingly his days shall amount to a hundred and twenty years.” Gen 6:3
So after Noah fathered before Shem, Ham and Japheth until the flood there was a 120 years
However, the 148 years links up with the end period of the Gospel Age at 1947 where the 120 years starts form the end of the Gospel Age.
So from 1947 if we had 120 years brings us to 2067 which is the end of this evil age and the start of grand Seventh Millennium will then begin
There would be 40 years of ever increasing chaos starting at 2027 and ending in 2067.