In the perspective of Christianity, Good Friday, also known as Holy Friday, Great Friday, Black Friday, or Easter Friday, is the Friday immediately preceding Easter Sunday. It is celebrated traditionally as the day on which Jesus was crucified.
Now if we are to take this belief for granted, meaning that if we believe that Jesus was indeed crucified on Friday, however, there is disagreement about its calculation by Christians themselves. The Bible does not explicitly state on which day of the week Jesus was crucified, but most of them supposedly believe that Jesus died on Friday. According to their Bible, Jesus said that he would be dead for “three days and three nights”. Now if Jesus was crucified on Friday afternoon and was raised on Sunday morning as is commonly believed, then this does not correspond to his words mentioned in The Bible.
However, In Islam's perspective, Jesus never was killed nor crucified , rather Allah saved him and directly raised him alive to heavens. The Qur'an clearly states that in Chapter 4:157-158:
"وَقَوْلِهِمْ إِنَّا قَتَلْنَا الْمَسِيحَ عِيسَى ابْنَ مَرْيَمَ رَسُولَ اللَّهِ وَمَا قَتَلُوهُ وَمَا صَلَبُوهُ وَلَٰكِن شُبِّهَ لَهُمْ ۚ وَإِنَّ الَّذِينَ اخْتَلَفُوا فِيهِ لَفِي شَكٍّ مِّنْهُ ۚ مَا لَهُم بِهِ مِنْ عِلْمٍ إِلَّا اتِّبَاعَ الظَّنِّ ۚ وَمَا قَتَلُوهُ يَقِينًا * بَل رَّفَعَهُ اللَّهُ إِلَيْهِ ۚ وَكَانَ اللَّهُ عَزِيزًا حَكِيمًا" (النساء:157-158)
" And [for] their saying, "Indeed, we have killed the Messiah, Jesus, the son of Mary, the messenger of Allah." And they did not kill him, nor did they crucify him; but [another] was made to resemble him to them. And indeed, those who differ over it are in doubt about it. They have no knowledge of it except the following of assumption. And they did not kill him, for certain. Rather, Allah raised him to Himself. And ever is Allah Exalted in Might and Wise."