Oh cool. Time prophecies.
1) Could you please explain why solar years make more sense than other alternatives such as a lunar calendar (which Jews actually use) or some other alternative like the "prophetic year"?
2) Then fold in the references to "1260" from sources in the Tenakh and Revelation.
3) And Daniel's reference to 2300 days and something having to do with 1335 days.
4) Oh yes, and the one about 42 months.
5) Oops...also 69 and 70 weeks.
Sorry, I forget Daniel was a little busy on this subject.
6) And Revelation's references to "three and a half" days.
I probably missed a couple more prophecies about time, but it's been a while since I tried to do this off the top of my head, sorry.
7) And have all those point to 1980A.D. in some fashion.
The thing about time prophecies is if you start with the wrong assumptions, you end up with answers that are off. GIGO.
But how can you tell if the assumptions are right or wrong?
I suggest this for consideration: If you can make a pattern out of many time prophecies across scripture and it hangs together in a neat little pattern, probably you're on the right track.
If you can only get one prophecy to point to a particular time and the rest don't, it's probably time to head back to the drawing board and try some different assumptions.