Paul Wilson (1 Apr 2011)
"Possible Tribulation Start Dates"

If we take the 1948 creation of Israel as or guide then a 70 year generation go to 2018 if we go to the end of the Jewish year 5778 Elul 29 and count back 42 months then count back 4 days (the 3.5 days  the 2 witness are dead and then going ahead and finishing out that last day) then count back 1260 days it appears we end up of Heshvan 6 5772 or Nov 3 2011 as the final Jewish calendar start date possible for every thing to happen in the 70 year generation.
 
Taking Iyyar 5 5778 as the date of the end of the generation, Iyyar 5 being the date on the Jewish calendar that Israel was reborn in 1948, going back again 42 months, 4 days, and then 1260 days you come to Sivan 10 5771 or June 12th 2011 four days after Pentecost.
 
If we take Iyyar 5 5778 and go back 7 years for the tribulation length we come to Iyyar 5 5771 or May 9th 2011.
 
If we take the date of May 14th 2018 as the end of the generation then using the Gregorian calendar, and 7 years , we come to May 14 2011.
 
If you take Dec 31st 2018 as the end of the generation, using the Gregorian calendar, then you go back 7 years you get Dec 31st 2011 as the last possible Gregorian calendar date.
 
If you take the date of Sept 9th 2018, last date of the Jewish year 5778 and count back 42 months, 4 days and 1260 days on the Gregorian calendar you come to Sept 25th 2011.
 
If you take the date of Sept 9th 2018, last date of the Jewish year 5778 and count back 7 years on the Gregorian calendar you come to Sept 9th 2011.
 
If you take Dec 31st 2018 as the end of the generation and go back, on the Gregorian calendar, 42 months, 4 days and 1260 days you come to Jan 13th 2012 as the start date.
 
If you take Dec 31st 2018 as the end of the generation and go back, on the Gregorian calendar, 42 months, 4 days and 1335 days you come to Oct 31st 2011 as the start date.
 
If you take Elul 29th 5778 as the end of the generation and go back 42 months, 4 days and 1335 days you come to Av 23 5771 or Aug 23rd 2011 as the start date 2 weeks after the 9th of Av.
 
If you take the date of Sept 9th 2018, last date of the Jewish year 5778 and count back 42 months, 4 days and 1335 days on the Gregorian calendar you come to July 13 2011.
 
The rapture would have to happen prior to the start date but not sure by how much. According to these numbers the earliest start date is May 9th 2011 the latest is Jan 13 2012.
 
Iyyar 5 5771 or May 9th 2011
May 14 2011
Sivan 10 5771 or June 12th 2011
July 13 2011
Av 23 5771 or Aug 23rd 2011
Sept 9th 2011
Sept 25th 2011
Oct 31st 2011
Heshvan 6 5772 or Nov 3 2011
Dec 31st 2011
Jan 13th 2012
 
Paul
 
PS if I am off a day on these numbers please let me know but I a pretty sure they are right.