garee,
re: "I was replying to the question.... Are you a 6th day of the week crucifixion advocate?"
OK, your question mark must have been a typo. At any rate, I don't see how you've never heard of folks who think the crucifixion took place on the 6th day of the week.
re: "I would offer the three day work of suffering began in the garden of Gethsemane..."
This topic is actually directed to those who think the "heart of the earth" is referring to the tomb or at the earliest to when the Messiah's spirit left His Body.
I go by Luke who adds information that it was a Sabbath of Passover. Here it is in 3 different translations.
Luke 22 King James Version (KJV)
1 Now the feast of unleavened bread drew nigh, which is called the Passover.
2 And the chief priests and scribes sought how they might kill him; for they feared the people.
3 Then entered Satan into Judas surnamed Iscariot, being of the number of the twelve.
4 And he went his way, and communed with the chief priests and captains, how he might betray him unto them.
5 And theywere glad, and covenanted to give him money.
6 And he promised, and sought opportunity to betray him unto them in the absence of the multitude.
7 Then came the day of unleavened bread, when the passover must be killed.
8 And he sent Peter and John, saying, Go and prepare us the passover, that we may eat.
9 And they said unto him, Where wilt thou that we prepare?
NIV
Judas Agrees to Betray Jesus
1 Now the Festival of Unleavened Bread, called the Passover, was approaching, 2 and the chief priests and the teachers of the law were looking for some way to get rid of Jesus, for they were afraid of the people. 3 Then Satan entered Judas, called Iscariot, one of the Twelve. 4 And Judas went to the chief priests and the officers of the temple guard and discussed with them how he might betray Jesus. 5 They were delighted and agreed to give him money. 6 He consented, and watched for an opportunity to hand Jesus over to them when no crowd was present.
The Last Supper
7 Then came the day of Unleavened Bread on which the Passover lamb had to be sacrificed. 8 Jesus sent Peter and John, saying, “Go and make preparations for us to eat the Passover.”
9 “Where do you want us to prepare for it?” they asked.
AMPC
1 Now the Festival of Unleavened Bread was drawing near, which is called the Passover.
2 And the chief priests and the scribes were seeking how to do away with [Jesus], for they feared the people.
3 But [then] Satan entered into Judas, called Iscariot, who was one of the Twelve [apostles].
4 And he went away and discussed with the chief priests and captains how he might betray Him and deliver Him up to them.
5 And they were delighted and pledged [themselves] to give him money.
6 So he agreed [to this], and sought an opportunity to betray Him to them [without an uprising] in the absence of the throng.
7 Then came the day of Unleavened Bread on which the Passover [lamb] had to be slain.
8 So Jesus sent Peter and John, saying, Go and prepare for us the Passover meal, that we may eat it.
9 They said to Him, Where do You want us to prepare [it]?
Here is the burial of Jesus. The Sabbath mentioned is the one mentioned above.
Luke 23
KJV
50 And, behold, there was a man named Joseph, a counsellor; and he was a good man, and a just:
51 (The same had not consented to the counsel and deed of them
he was of Arimathaea, a city of the Jews: who also himself waited for the kingdom of God.
52 This man went unto Pilate, and begged the body of Jesus.
53 And he took it down, and wrapped it in linen, and laid it in a sepulchre that was hewn in stone, wherein never man before was laid.
54 And that day was the preparation, and the sabbath drew on.
NIV
The Burial of Jesus
50 Now there was a man named Joseph, a member of the Council, a good and upright man, 51 who had not consented to their decision and action. He came from the Judean town of Arimathea, and he himself was waiting for the kingdom of God. 52 Going to Pilate, he asked for Jesus’ body. 53 Then he took it down, wrapped it in linen cloth and placed it in a tomb cut in the rock, one in which no one had yet been laid. 54 It was Preparation Day, and the Sabbath was about to begin.
AMPC
50 Now notice, there was a man named Joseph from the Jewish town of Arimathea. He was a member of the council (the Sanhedrin), and a good (upright, advantageous) man, and righteous (in right standing with God and man),
51 Who had not agreed with or assented to the purpose and action of the others; and he was expecting and waiting for the kingdom of God.
52 This man went to Pilate and asked for the body of Jesus.
53 Then he took it down and rolled it up in a linen cloth for swathing dead bodies and laid Him in a rock-hewn tomb, where no one had ever yet been laid.
54 It was the day of Preparation [for the Sabbath], and the Sabbath was dawning (approaching).
