Here are simple formulas marking 23 September 2017:
888 is the Greek gematria of 'JESUS'.
The Greek gematria of 'JESUS CHRIST' (2368) / Pi equals 754 which is the Hebrew gematria of 'Yeshua HaMeshiach'.
Obama's first day in office was 20 January 2009.
20 January 2009 plus 888 ('JESUS') x Pi plus 'Yeshua HaMeshiach' (754) / 2 = 23 September 2017.
or 20 January 2009 plus 888 ('JESUS') x 2368 ('JESUS CHRIST') / Pi / 2 = 23 September 2017.
Note that Jesus Christ, Pi and the unique prime number 2 (the only even numbered prime) are the three elements (the Trinity) that reveal our day to escape in this formula.
14 May 1948 + the sum of all 929 Old Testament chapter numbers (24,978) was 2 October 2016. 2 October 2016 (1 Tishrei 5777) plus 113 x Pi (355) = 23 September 2017.
The 31st prime number 113 has a unique relationship to Pi. 113 x Pi yields the closest result to a whole number: 354.9999699 or 355. The 31st triangle number is 496 which is the third perfect number.
Note that Jesus Christ, Pi and the unique prime number 113 are the three elements (the Trinity) that reveal our day to escape in this formula.
Andrea has created a chart showing these formulas I have discovered: http://finalstagesofpeacetalks.blogspot.com/2017/06/september-23-2017-marked-by-obamas-date.html