I'm not saying I even agree with the current reasoning behind the 1914 date, but you can't argue that with JW's, BUT in my latest research and personal study, I ran into the kryptonite for the 1914 date.
Right out of "bible topics for discussion" is "Chronology" in which it states 1914 ce ends gentile times
Line of kingom rulers interuppted 607 bce Ac 17:24, 25 7:48
"Seven Times" to pass until rule restored Da 4:32, 16, 17
Seven = 2 X 3 1/2 times or 2 X 1260 days Rev 12:6, 14 11:2, 3
A day for a year Makes 2520 years Eze 4:6 Nu 14:34
To run until kingdoms establishment Lu 21:24 Da 7:13, 14
So that is how they get their date, and no arguing on 607 when everyone else says 587. Now what I am going to show, may help with your own studies on other topics as well, hopefully this doesn't backfire on me, and the GB releases this as "new light" to further the date.
As you see, they are basing 7 times meaning 7 years, and 360X7=2520. WELL.........'new light' atleast for me, that the bible prophetic calendar, had a LEAP YEAR. On the 7th year, you added 30 days. This is in harmony with the bible, as you can see in Ez 4:5, 390 days vs 360, and also in Daniel 12:11 1290 days, vs the 1260 days.
SO, using their own logic to attain 1914, they are off by 30 years, it should be 1260 + 1290 = 2550 OR 7 times = 7 years = 6x360 + 1x390 = 2550 607BCE = 2550 = 1944 1944 1944
1944 is the true date according to the 1914 reasoning.
Again, this post is just to scriptually prove 1914 at the logic used is still wrong. I'm currently figuring out the true meanings behind all these prophecies and how the numbers relate.