Black Friday is the  day after Thanksgiving, which is always on a Thursday. Black Friday is considered  as the day to start shopping for Christmas

The word "black" in Black Friday refers to the term "in the black" meaning making a profit. Today, Black Friday is not a crucial source of profit to retailers, but is important in driving traffic into stores. Many retailers mail special Black Friday circulars to consumers, announcing deeply discounted items in the hopes that consumers will visit their store on Black Friday.