Maybe you really don't understand after all....and if so, I apologize for being so hard on you.
The Hebrew day precedes the Roman/Modern day by 6 hours. The Hebrew day, of course beginning at sunset and the Roman day beginning at midnight. So.....when the Naval observatory mentions that the full moon for 30 A.D. is on Thursday....that means the full moon for the Hebrew 15th of Nisan (Feast of Unleavened), which corresponds to the 6th of April..... actually began the previous evening.....the 5th of April by 6 hours (approximate time of sunset). Please see my calendar for verification of this fact:
The 6th of April, of course the date of the full moon and now verified by the Naval Observatory.....is also the First Sabbath of Unleavened Bread. It follows the Passover which as you can readily see (and now verified by the Navy) is on the 14th of Nisan.....or the 5th of April.
Like I said..........I really am sorry this has been such a difficult concept for you....but now you (and all the lurkers) can see that I've been correct from the get go.
Now please follow me as I'm going to go slow...........
Yeshua was crucified and died on Passover, the 14th of Nisan, 30 A.D. [Leviticus 23:5]. It was a Wednesday, April 5th, but had begun the previous sunset (April 4th) which was on Tuesday. He was entombed right before sunset which led into the Feast of Unleavened Bread, the 15th of Nisan [Leviticus 23:6] and was still April 5th until midnight when it then became Thursday, April 6th, 30 A.D. This has now been verified by your Naval Observatory link.
***The Hebrew day precedes the Roman/Modern day by 6 hours.***
Well of course it does. that makes April 6, 8 P.M. Thursday the equivalent of start of the Hebrew Friday as their day began at sundown. So to the Hebrew it would be Nisan 14 at 8PM, the beginning of their day count. The Roman Thursday would be ending and the Hebrew friday had already started.
Friday was April 7 by Roman count, and Nisan 14 by Hebrew count.
Friday crucified and buried. Saturday Sabbath and Passover, Sunday resurection, “This is the third day”..
They were traveling so it was NOT a Sabbath day.