It's 42 literal months, not years.
That IS funny.
But the fact of the matter is that a study of the 18 prophetic time periods in the books of Daniel and Revelation can clear up the uncertainty. If it could be known for a fact that the 3 instances of prophetic time in Daniel 7 and Revelation 12 are 1260 Years, then it would greatly reduce the amount of wiggle room in deciding where those prophecies belong.
Revelation 12 is an excellent example because there are 2 prophetic time periods:
woman fled into the desert: 1,260 days – Revelation 12:6
woman fled into the desert: Time, times and half a time – Revelation 12:14
If you think that the woman fled into the desert only one time, this is a good time to show how "time, times and half a time is exactly 1260 days. Think about time in geometry terms, like the amount of time it takes the earth to rotate around the sun. It takes a full year for that to happen one time and we make a full circle of 360°.
The bad news is that a study of the prophetic time periods involves figuring out the Jubilee calendar and that's not easy. There's only 3 guys I've ever heard of that did it. Not even the Jews have a proper understanding of it, I read a Hasidic rabbi in an article who was unsure how to count the Jubilee cycles.
But there's no other way around it there's no short cuts. The translation of prophetic time where we get weeks of years comes from the Jubilee calendar and not from Ezekiel laying on his side for 390 days. When Bible guys were confronted with Daniel 9 they knew 70 weeks HAD to be translated because 70 literal weeks wouldn't fit with the prophecy but 490 YEARS did. This is an example of something self evident but with no apparent scriptural instruction.
Then it became apparent that there were other prophetic time periods that did not require translation like the 1000 years of Rev.20 or our 42 months from Rev 13. So who gets to decide? You? Me? The shemitah guy with the beard? The Jubilee calendar guys noticed that it had a logical termination after 7 sets of 70 weeks. With the calendar beginning in the spring of 1437BC, 7 sets of 70 weeks brings us to April 1994. Any prophecy that takes place during the operation of the Jubilee calendar is translated from day to year. Any prophecy that takes place after 1994 would remain in literal time.
The best work that I've seen on the Jubilee calendar was done by Larry Wilson. He made 12 half hour videos, and I'll also post his list of the 18 prophetic time periods and 17 apocalyptic prophecies. Just a heads up Doug, this part 10 starts with him explaining the 6 Daniel time periods.
1. Time, times and half a time
(saints persecuted: 1260 Years– Daniel 7:25)
2. 2,300 evenings and mornings
(until temple restored: 2300 Years– Daniel 8:14)
3. 70 weeks
(determined upon the Jews,: 490 Years – Daniel 9:24,25)
4. Time, times and half a time
(power of the holy people broken: 1260 Days– Daniel 12:7)
5. 1,290 days
(the end of the daily: Literal Days– Daniel 12:11)
6. 1,335 days
(blessed is the one: Literal Days– Daniel 12:12)
7. Half hour of silence
(at the opening of the 7th seal: Literal Time– Revelation 8:1)
8. 5 months
( torture upon those not having the seal of God: Literal Months – Revelation 9:5)
9. Hour, day, month and year
(punctiliar event when war begins: Literal Months – Revelation 9:15)
10. 42 months
(Gentiles trample holy city: Literal Months – Revelation 11:2)
11. 1,260 days
(Two Witnesses empowered for this length of time: Literal Days – Revelation 11:3)
12. 3.5 days
(bodies of Two Witnesses lie in the street: Literal Days – Revelation 11:11)
13. 1,260 days
(woman fled into the desert:1260 Years – Revelation 12:6)
14. Time, times and half a time
(woman fled into the desert:1260 Years – Revelation 12:14)
15. 42 months
( beast was allowed to exercise authority: Literal Months – Revelation 13:5)
16. One hour
(ten kings join with beast: Literal Time – Revelation 17:12)
17. One day, one hour
(Babylon’s destruction begins: Literal Time – Revelation 18:8,19)
18. 1,000 years
(Satan in the abyss: Literal Years – Revelation 20:2)
Prophecy 1 – The Metal Man (Daniel 2:29-45)
Prophecy 2 – The Little Horn Power (Daniel 7:1-12)
Prophecy 3 – The Antichrist (Daniel 8:1-12)
Prophecy 4 – The Seventy Weeks (Daniel 9:20-27)
Prophecy 5 – Wars Between the North & South (Daniel 10:1-12:13)
Prophecy 6 – The Six Seals (Revelation 4:1-6:17)
Prophecy 7 – The 144,000 (Revelation 7:1-8:1)
Prophecy 8 – The Six Trumpets (Revelation 8:2-9:21)
Prophecy 9 – The Two Witnesses (Revelation 10:1-11:19)
Prophecy 10 – The Baby Jesus (Revelation 12:1-6)
Prophecy 11 – The Rise of Babylon (Revelation 12:7-14:5)
Prophecy 12 – The Eternal Gospel (Revelation 14:6-15:6)
Prophecy 13 – The Seven Bowls (Revelation 15:7-16:21)
Prophecy 14 – The Second Coming (Revelation 18:1-19:10)
Prophecy 15 – The Day of the Lord (Revelation 19:11-20:10)
Prophecy 16 – The Earth Purified (Revelation 20:11-21:1)
Prophecy 17 – The New Heaven and New Earth (Revelation 21:2-21:8)