"Jesus, therefore, six days before the passover, came to Bethany, where was Lazarus, who had died, whom he raised out of the dead;
2 they made, therefore, to him a supper there, and Martha was ministering, and Lazarus was one of those reclining together (at meat) with him;
3 Mary, therefore, having taken a pound of ointment of spikenard, of great price, anointed the feet of Jesus and did wipe with her hair his feet, and the house was filled from the fragrance of the ointment." (YLT)
According to the gospel of John, Jesus and the disciples were traveling on the sixth day before the Passover. If the Passover / crucifixion was on a Friday, then the sixth day before the Passover would have been the previous Saturday / Sabbath day. It is very unlikely that Christ would have traveled from Jericho to Bethany on the Sabbath.
But, Mark's account appears to have Jesus still in Bethany two days prior to the Passover.
"And the passover and the unleavened food were after two days, and the chief priests and the scribes were seeking how, by guile, having taken hold of him, they might kill him;
2 and they said, `Not in the feast, lest there shall be a tumult of the people.'
3 And he, being in Bethany, in the house of Simon the leper, at his reclining (at meat), there came a woman having an alabaster box of ointment, of spikenard, very precious, and having broken the alabaster box, did pour on his head;" (YLT)
Then, if we reason only from John's account, the latest 6th day that Christ could have traveled before the Passover would have been the previous Friday, and He then would have stayed over in Bethany with Lazarus and Mary during the Sabbath. That would make the Passover/crucifixion fall on a Thursday, not a Friday.
And, we are told in Mark 14:1, that the chief priests and scribes were conspiring against Christ two days before the feast of the Passover.
Is Mark's account in verse 3 a flash back to that weekend Sabbath rest in Bethany? And, is the Thursday the better possibility for the crucifixion day?