Maybe I'm being too critical and don't understand other relevant factors, but it seems very strange to me that that those who studied Bibical prophesies and timelines didn't know that there was no Zero year.
I mean, if you are trying to map events from the BC/BCE era to the current AD/CE era wouldn't it be somewhat obvious to a scholar how the time is calculated ?
Couldn't you just find a common date on the Jewish calendar before and after the Zero year and compare it to today's Gregorian calenadar to find the number of actual years that elapsed?
Maybe it's more complex than I understand but if you are in the business of making predictions, it seems like you should know the basics.
Rub a Dub