Assuming your right then I can assume that Christ rested on Friday (unless I'm missing something). And If I'm not missing something then accordingly from your theology shouldn't you be resting on worshipping on Friday instead of Saturday, and I don't mean starting on Friday evening.
The problem I have with arguing dates is that if God wanted us to know the physical exact dates he would of had the Apostles record the exact dates so that there would be no question in mind, that is a personal opinion though.
I've seen both sides of theological schools quote the Church fathers, for their side of their arguments. Some do better at quoting them then other, basically there is a lot of quoting taking out of context, just as many theological schools take the scriptures out of context. So basically I have a problem with certain Schools of theology trying to prove their cases with historical data when they can't even get their theology of scripture correct.
Oh but they did! "MIA TWN SABBATWN" is the Greek that is used to identify the first special Sabbath between Passover and Pentecost. All the resurrection verses use these Greek words to identify the day of resurrection. It was not the first day of the week. It is silly to argue that point as the Greek says very plainly "On one of the Sabbaths".
Fraudulent theology has purposely mistranslated these Greek words, attempting to place their own bias for a Sunday morning resurrection in the face of unsuspecting mankind. Most folks are taught from early childhood about a sunrise Sunday morning resurrection. They have been deceived and it is very simple to find the truth.
I would recommend reading the Greek.....instead of some ones biased translation.