The term used in scripture is "First of the Sabbaths". The Greek word is Sabbaton and is only used in scripture to denote these special seven Sabbaths between Passover and Pentecost. [Leviticus 23:15-16]
The Church....for 2000 years.....and the translators have attempted to show a Sunday morning resurrection but it won't fly when you read the Greek. All the Gospels will bear this out. The women are visiting an empty tomb on "The First of the Sabbaths". To a first century Jew there is no doubt in their mind that Matthew and the others are speaking of the first Saturday after Passover. The translators, in vain..... attempt to show this a "First Day of the Week. They are wrong.
Is that from the Gospel according to Jay Green?
Let's make it simple. I don't accept your definitions. I'll stick with the accepted scholarship.