One thing to consider in that conclusion and using that verse is that the first day after Passover is when the Feast of Unleaven Bread begins. The first day is a special sabbath. Any day of the week following the Passover in any given year would have been a sabbath. If Jesus was crucified on Thursday, then Friday and Saturday would have both been sabbaths that week.
RE: WHY I DON'T BELIEVE IN "GOOD FRIDAY"