Nothing good about Friday

I never really understood all the hoopla about "Good Friday". It just never made much sense to me. Why do people call it "Good"? When reading the Bible we see that there is no possible way Jesus could have died on Friday or rose on Friday so why is it celebrated? Matthew 12:40 tells us "For as Jonas was 3 days and 3 nights in the whale's belly; so shall the Son of man be 3 days and 3 nights in the heart of the earth." Matthew 28:1 tells us "In the end of the sabbath(Saturday), as it began to dawn toward the first day of the week(Sunday), came Mary Magdalene and the other Mary to see the Sepulchre." When thy arrived at the tomb-IT WAS EMPTY! There is NO possible way to count 3 days and nights between Friday evening and Sunday morning. That means Jesus was already in the tomb before Friday. Friday would have been the worst possible time for all believers on earth. Jesus had died, was buried and had not yet risen. It was a time of loss, fear, confusion, doubt; in other words anything BUT a good day! Apparently "good Friday" is nothing more than tradition created by men for men. I guess if you get a day off from work it could be considered a good Friday but then only as good as any other day you are off.