The Quran says,:"O you who have believed, when [the adhan] is called for the prayer on the day of Jumu'ah [Friday], then proceed to the remembrance of Allah and leave trade. That is better for you, if you only knew." (62:9)
Prophet Muhammad (SAWS), has related many events which happened on Friday, for example: Prophet Adam (AS) was made on Friday, it was the day he and Hawaa (AS) were expelled from Heaven and admitted to Earth on Friday. It was the day when Allah saved Prophet Musa (AS) from the Pharaoh. And according to many traditions, it is also stated that the Day of Judgement will also be on Friday.
Prophet Muhammad (SAWS) said : “Allah led those who came before us away from Friday. The Jews had Saturday, and the Christians had Sunday. Then Allah brought us and Allah guided us to Friday. So there is Friday, Saturday and Sunday, and thus they will follow us on the Day of Resurrection. We are the last of the people of this world but we will be the first on the Day of Resurrection, and we will be dealt with before all others.” Narrated by Sahih Muslim, Hadith 856
There is also Authentic saying from the Prophet (SAWS) that a Muslim who dies on Friday or the eve of Friday will be saved from the trial of the Grave: "There is no Muslim who dies during the day of Friday or the night of Friday but Allah will protect him from the trial of the grave.”
The Prophet (SAWS) also said that whoever recites Surah Al Kahaf on Friday will be saved from the FItna (trial) of Dajjal. Prophet (SAWS) also said : “Friday is comprised of twelve hours. There is one in which a Muslim who asks Allah for something will have it granted to him. Seek it in the last hour after Asr.”
These are the some of the Virtues of Friday, May Allah Bless the Muslim Ummah, and give us the capability of following the Quran and Footsteps of our Prophet (SAWS)