Ping.
Thanks for the ping. I am amazed by the amount of discussion this topic has generated.
The basis for my interpretation is simple: Sabbath is always from sundown Friday to sundown Saturday.
Jesus was crucified on a Day of Preparation (Friday), and his body was buried before sundown because the Sabbath that would begin at sundown was a high holy day.
The women went to the tomb before sundown, saw where his body was laid, returned home and prepared spices.
The women rested on the Sabbath (from sundown Friday to sundown Saturday).
Early the next morning (Sunday) they went to the tomb and found the stone rolled away