If he was the end of the world will be 2060 so that would explain dying birds and fish just after the moon turned blood red (eclipse).
The prophetic time periods
The time period 1260 days appears in Daniel 7:25 (as "a time and times and the dividing of time" [=a year, two years and a half year]), Daniel 12:7 (as "a time, times, and an half" [=a year, two years and a half year]), Revelation 11:3 (1260 days), Revelation 12:6 (1260 days) and Revelation 13:5 (42 months) The time period 1290 days appears in Daniel 12:11. The time period 1335 days appears in Daniel 12:12. The time period 2300 days occurs in Daniel 8:14. How did Newton arrive at the date 2060?
This did not involve the use of anything as complicated as calculus, which he invented, but rather simple arithmetic that could be performed by a child. Beginning in the 1670s and continuing to the end of his life in 1727, Newton considered several commencement dates for the formal institution of the apostate, imperial Church. Earlier commencement dates include 607 and 609 A.D. As Newton grew older, he pushed the time of the end further and further into the future. In Yahuda MS 7 Newton twice gives 800 A.D. for the beginning of "the Pope's supremacy". The year 800 is a significant one in history, as it is the year Charlemagne was crowned emperor of Rome in the west by Pope Leo III at St. Peter's in Rome. Since Newton believed that the 1260 years corresponded to the duration of the corruption of the Church, he added 1260 to 800 A.D. and arrived at the date 2060 for the "fall of Babylon" or cessation of the apostate Church. It seems that Newton believed the fall could perhaps begin somewhat before the end of the 1260-year period and continue for a short time afterward. Whatever the precise chronology, Newton believed that sometime shortly after the fall of the corrupt (Trinitarian, Catholic) Church, Christ would return and set up a 1000-year Kingdom of God on earth. On page 144 of his Observations (1733), Newton cited Daniel 7:26-27 as evidence of this:
But the judgment shall sit, and they shall take away his dominion to consume and to destroy it unto the end. And the kingdom and dominion, and the greatness of the kingdom under the whole heaven, shall be given to the people of the saints of the most High, whose kingdom is an everlasting kingdom, and all dominions shall serve and obey him. Newton espoused a premillenarian eschatology and thus held that Christ would return to earth to establish the Millennium.