The reason that Friday is the day most think of as the day of Christ’s crucifixion is that Mark 15:42 states that it was the preparation day (the day before the Sabbath). In the normal weekly Sabbath cycle, Friday is indeed the preparation day. But in this case, there were two Sabbaths during that week. The Sabbath referred to in Mark 15:42 was an annual Holy Day—the First Day of Unleavened Bread. John 19:31 confirms this by specifically stating that it was a high day, or annual Holy Day. Then two days later was the weekly Sabbath, which is the one referred to in Luke 23:56.
from:
Three Days and Three Nights
https://www.ucg.org/bible-study-tools/booklets/easter-the-rest-of-the-story/three-days-and-three-nights
The High Sabbath connected with Pesach or Passover was not the same Sabbath that is observed on the 6th day. It was a specific holy day at the end of Passover determined by when Passover began. My point was Jesus said he would be in the grave “3 days”..... so He was in the grave 3 days.... He did not lie.