The Day Of Christ's Resurrection
Jesus Christ died a little after 3 pm on a Wednesday:
"27:45 Now from the sixth hour there was darkness over all the land unto the ninth hour [see Hours Of The Day]. 27:46 And about the ninth hour Jesus cried with a loud voice, saying, Eli, Eli, lama sabachthani? that is to say, My God, my God, why hast thou forsaken me? [see Eloi, Eloi, Lama Sabachthani?]
The Messiah's dead body (see What Happens When You Die? and God Alone) was placed in the tomb just before sunset on the preparation day (Nisan 14, which occurred on a Wednesday that year) before the beginning of the annual Sabbath, the First Day of Unleavened Bread (see the Fact Finder question below):
"23:50 And, behold, there was a man named Joseph [see Joseph Of Arimathea; also Nicodemus], a counsellor; and he was a good man, and a just: 23:51 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. 23:52 This man went unto Pilate, and begged the body of Jesus. 23:53 And he took it down, and wrapped it in linen [see Shroud Of Turin: A Miraculous Fake?], and laid it in a sepulchre that was hewn in stone, wherein never man before was laid. 23:54 And that day was the preparation, and the sabbath drew on.
"So shall the Son of man be three days and three nights in the heart of the earth"
Jesus Christ said that the only proof that would be given (to unbelievers) that He was the Messiah (see Israelite Monarchy - The Messiah; also The Messiah's Triumphal Entry Into The Temple) was that He would be in the tomb for exactly three days and three nights:
"12:39 But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: 12:40 For as Jonas was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth." (Matthew 12:39-40 KJV)
Christ's resurrection occurred three days and three nights from just before sunset on Wednesday when His body was placed in the tomb, which came to just before sunset on the seventh day, the weekly Sabbath. When the women and the apostles went to the tomb early on the first day of the week (which the pagan Romans named "Sun Day" - see Sun Worship and What Is A Halo?), they found the tomb empty upon their arrival, long before sunset, because the resurrection had occurred hours before, on the seventh day of the week. That's why the angels told them "He is not here, but is risen" (Luke 24:6 KJV)
"24:1 Now upon the first day of the week, very early in the morning, they came unto the sepulchre, bringing the spices which they had prepared, and certain others with them. 24:2 And they found the stone rolled away from the sepulchre [see also The Tomb Watchers]. 24:3 And they entered in, and found not the body of the Lord Jesus. 24:4 And it came to pass, as they were much perplexed thereabout, behold, two men stood by them in shining garments: 24:5 And as they were afraid, and bowed down their faces to the earth, they said unto them, Why seek ye the living among the dead? 24:6 He is not here, but is risen: remember how he spake unto you when he was yet in Galilee, 24:7 Saying, The Son of man must be delivered into the hands of sinful men, and be crucified, and the third day rise again.
Fact Finder: What was the chronological order of events during the week that Christ was crucified?