Jesus rose from the dead on a Sunday. It's interesting that every one of the four Gospels makes the point that it was early on the first day of the week that the women came to the tomb and found it empty. The first day of the week, of course, is Sunday.
Jesus had to rise from the dead on a Sunday. He couldn't have risen on a Monday, or a Tuesday. In the beginning, God created the universe in seven days. He worked six days in creation, and rested on the seventh. Jesus rose from the dead on the eighth day: the first day of a new creation.
It is pretty certain though that Jesus was not crucified on a Friday. Nowhere in the Bible does it say that He was crucified on a Friday. People assume that it was Friday. The Bible says it was the day before the sabbath: His body had to be taken from the cross and buried hurriedly because the sabbath was approaching. But there were two sabbaths that week. It was Passover.
Passover always began on the even of the 14th of the Jewish month Nisan, irrespective of what day of the week that date fell. The following day was always a sabbath, in which work was forbidden (Ex 12:16; Lev 23:5 - 8; Num 28:16 - 18). John 19:31 makes it clear that the day following Christ's crucifixion was a high sabbath: the sabbath in connection with Passover.
We could perhaps work out on what day the 14th of Nisan fell in that year - but we don't know for sure in which year Jesus died.
The Old Testament contains many prophecies about the death of the Messiah. They were all fulfilled in exact detail. Jesus Himself prophesied of His death. He told the scribes and Pharisees: "As Jonah was three days and three nights in the belly of the great fish, so will the Son of Man be three days and three nights in the heart of the earth" (Matt 12:40). If you count the first day and the last day, you can call Friday to Sunday three days. But there is no way you can fit three nights in between Friday and Sunday.
Some Bible scholars believe Jesus was crucified on a Wednesday. The women rested on the Passover sabbath on Thursday, bought spices and ointments to anoint Christ's body on Friday (Mark 16:1; Luke 23:56), rested on the weekly sabbath on Saturday, and went to the tomb early on Sunday.
Others prefer to believe that Jesus was crucified on Thursday, with the Passover sabbath on Friday and the weekly sabbath on Saturday. That way, Christ's body would be in the tomb for three days - from Thursday to Sunday - and three nights - Thursday night, Friday night and Saturday night.
Although the Passover lamb was not killed until the 14th of Nisan, it had to be chosen on the 10th of Nisan and examined to see that it was without blemish (Ex 12:3 - 6). Jesus, our Passover lamb, was presented to the people as He rode into Jerusalem on Palm Sunday. After examination by the Jews, Herod and Pilate, he was crucified four days later.
So what day of the week did Jesus die? I don't know. The Bible doesn't say. It isn't important. If it were important, the Bible would say. What is important is the fact that He died.
We were all sinners. We had all fallen short of God's standard. We were separated from God. God needed someone who would live a life without sin and give that life in our place, that God's righteousness and God's justice might be satisfied as well as His love. That need was met in Jesus.
"For God so loved the world that he gave his only begotten Son, that whoever believes in him should not perish but have everlasting life" (John 3:16).
"Scarcely for a righteous man will one die; yet perhaps for a good man someone would even dare to die. But God demonstrates his own love towards us, in that while we were still sinners, Christ died for us" (Rom 5:7, 8).
There's love for you. When I didn't know Him and didn't want Him, He died in my place.