Prophet Muhammad (PBUH), the last of all prophets said in his Hadith,

"Friday is the best of days. It was on this day that Hadrat Aadam alayhis salaam was created, it was on this day that he was granted entry into jannah, it was on this day that he was removed from jannah (which became the cause for man's existence in this universe, and which is a great blessing), and the day of resurrection will also take place on this day." (Sahih Muslim)

The Friday is the most sacred and reverend day of the week for Muslims. It is the day full of blessings and Allah showers his blessings on Muslims who offer clean themselves, learn Quran and offer congregational prayers on Friday. It is the day on which some of the most important incidents took place and some important incidents will take place.