The Jews would have been using a Lunar Calendar, that means the passover (14th day of the month) could fall on any day of the solar week (Sunday - Saturday).
I choose the 14th day of the first Lunar Month belonging to the year. The problem is knowing which month that is. I'll accept any day that falls on as it pertains to the solar week. The one rule I seem to find in the Bible besides all the different historians and such (which don't seem completely clear) is that the Full Moon must be close to the equilux in both vernal and autumn. Therefore, the March 14th, 32 AD date would be the closes to align both the 1st and 7th months to the equilux'. That day just happens to be a Friday on the solar calendar. But this is still something I need to study more as the historical reference I provided earlier with the link is pretty good evidence but there still seems something wrong with it in my opinion.
I do not believe He was in the tomb for 72 hours. In other words, I do not believe the Sign of Jonah pertained to how long Jesus would be in the Tomb but rather the "Heart" of the Earth. I used several things to find the year Christ Returns including the stars. I was then able to just run a computer algorithm I made to plot all the rest of them in history from that date. 32 AD was a Jubilee year according to that algorithm which is really just going back in time by 49 year cycles. I can't tell you when He will return because of forum rules.
The problem is March 14 was the 14th of Adar II. Are you saying that year, the 15th of Nisan was not the Passover? According to even the Lunar Calendar, the Nisan 15 is always a full moon. Why are you picking a totally different month that particular year? Yes, Adar II 14 was a Friday. According to the online Calendar I use, March 16 was the full moon, a Sunday during Adar II. In Nisan, the 14th was the full moon, a Monday. That is why AD 32 is not a candidate. During Adar II, the full moon is late on Sunday. Early on Monday during Nisan. Even if the Passover was changed in 32 AD to Adar II, the full moon on Sunday does not make sense.
The time spent in the tomb was 3 days to prove death. Since Jonah did not die for 3 days in the book of Jonah, the Jews seems to think one is not officially dead until the 3rd day. Jonah 1:17
17 Now the Lord had prepared a great fish to swallow up Jonah. And Jonah was in the belly of the fish three days and three nights.
It would be a miracle if only 24 hours. God claims 3 days, and 3 nights. Was Lazarus in the tomb 24 hours? John 11:6-7
6 When he had heard therefore that he was sick, he abode two days still in the same place where he was.
7 Then after that saith he to his disciples, Let us go into Judaea again.
Did Jesus wait 2 more days?
11 These things said he: and
after that he saith unto them, Our friend Lazarus sleepeth; but I go, that I may awake him out of sleep.
12 Then said his disciples, Lord, if he sleep, he shall do well.
13 Howbeit Jesus spake of his death: but they thought that he had spoken of taking of rest in sleep.
14 Then said Jesus unto them plainly, Lazarus is dead.
15 And I am glad for your sakes that I was not there, to the intent ye may believe; nevertheless let us go unto him.
Then we are told:
17 Then when Jesus came, he found that he had lain in the grave four days already.
So by the time they did arrive, Lazarus was already in the tomb 4 days. Even longer than the 3 days and 3 nights, Jonah was not dead, unless one accepts Jonah himself was resurrected. Lazarus being dead 4 days, was dead, dead. He was starting to stink of rotten flesh after 4 days.
38 Jesus therefore again groaning in himself cometh to the grave. It was a cave, and a stone lay upon it.
39 Jesus said, Take ye away the stone. Martha, the sister of him that was dead, saith unto him, Lord, by this time he stinketh: for he hath been dead four days.
So the sign of Jonah, and the reason Jesus waited 4 days to Raise Lazarus from death, is not a time factor more than it was proof of death. Sure Jesus could have only been there 24 hours, and really, really dead. Death was already confirmed though. John 19:32-35
32 Then came the soldiers, and brake the legs of the first, and of the other which was crucified with him.
33 But when they came to Jesus, and saw that he was dead already, they brake not his legs:
34 But one of the soldiers with a spear pierced his side, and forthwith came there out blood and water.
35 And he that saw it bare record, and his record is true: and he knoweth that he saith true, that ye might believe.
Jesus was dead. So changing things to a particular day came centuries later by a rather feast day prone need for a particular feast day, having nothing to do with proving the death of Jesus to Jews in the first century. Friday cannot work both because of Scripture and Jesus' body was not in the grave for only 24 hours to prove to me or you, Jesus was dead or not. Jesus was there 3 days and 3 nights, because in 30AD the 15th of Nisan was 3 days away from Sunday. They did not even seal the tomb until a day later on Friday. Why: Matthew 27:62-64
62 Now the next day, that followed the day of the preparation, the chief priests and Pharisees came together unto Pilate,
63 Saying, Sir, we remember that that deceiver said, while he was yet alive, After three days I will rise again.
64 Command therefore that the sepulchre be made sure
until the third day, lest his disciples come by night, and steal him away, and say unto the people, He is risen from the dead: so the last error shall be worse than the first.
It was 3 days, because that is what those that week claim. Not because the church later decided to celebrate a certain Friday every year. Not even because a certain year is in perfect alignment with the sun and moon. Yes, God is certainly aware of how the stars work: Genesis 1:14.
14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
God created and knew exactly how all would work out to the exact time necessary. Picking a Friday is not necessary to God's plan. The church in choosing Friday was an act to remove all Hebrew recognition of the Passover. It also was a move to a more pagan acceptance of the equinoxes. Not going to question your motive. Nor is the need to pinpoint the time an attempt to bring the Law into the reasoning. But to totally divorce the Cross from the Passover is not recognizing God at work in the lives of whom God chooses.