So I heard. Of course, the original account just marks the time indicator in relation to a Passover Feast, and most everything in the Bible either gives dates with reference either to that or how lone the king has been reigning. You know, it's not clear. Or rather, I'm sure that full time scholar who worked would be able to determine a timeline with a fair degree of accuracy but the actually first of all the Bible isn't a history book in the modern sense (maps n chaps, battlefield coordinates and times of day) and secondly it just isn't written that way in most cases. The point is that the writer is telling the story. That is a good question, I could spend some time researching that. It might very well be that the Thursday or the Friday, or any other day of the week is simply a way that the masses and services remembering events were set into the European's liturgical calendar. Don't forget that their days of the week were also different from the Hebrew days of the week, as were the months and years. That wasn't a statement in physics, that was linguistic and referring to different reigns of different kings. Also, If you're just talking about when and on what day any particular mass or vespers is, just keep remembering that that's liturgical calendar. They yearly schedule of masses and services isn't the same as the literal events in Israel. That does raise interesting issues. Maybe no one knows when he died, except from the eyewitness accounts of a few people living under Roman occupation during a very violent Zionist Zealot revolution. People actually say that he was arrested tried and crucified at night, and it seems to indicate that it wasn't on a legal printed and recorded court docket. Maybe it's just some king of national or social or family or religious affair, and you have to be one of them to find out.