Read your bible more, with Saturday being the sabbath and the last day of the week, Sunday is naturally the first day of the week.
Mt 28:1 - In the end of the sabbath, as it began to dawn toward the first day of the week, came Mary Magdalene and the other Mary to see the sepulchre.
Sabbath ends at sundown on Saturday. If the women waited till the end of Sabbath, it would've been on Saturday night.
You are correct....in fact here is the original Greek, [Now late on Sabbath as it was getting dusk toward the first day of the week, came Mary the Magdalene and the other Mary to see the sepulchre.] That was verse 1, and remember, the Sabbath ends at sunset....so this would be 5 to 6 P.M. Saturday our time.
Verse 6 the Angel says, again in the original Greek, [He is not here for he has risen, as he said. Come see the place where was lying the Lord.] Remember, this is still late on the Sabbath.
I just chuckle when I see people trying to convince themselves that he arose on Sunday morning.
I have read enough to know that all four accounts differ considerably on this. But the point was that Mary Magdalene discovered the empty tomb around dawn on Sunday. That doesn't mean that it wasn't empty Saturday at 11:59 pm. The Scriptures don't fix the time only the discovery.