Black Friday refers to the day right after Thanksgiving and is typically regarded as the first day of the Christmas shopping season in the United States wherein retail stores offer discounted merchandises. This means that Black Friday can happen any day in November as long as it falls on Friday or the day right after Thanksgiving.
Many people even go to the extreme of falling in line as early as midnight to quickly get in the store as soon as it opens so they can buy the things they wanted at a very cheap price. It was even reported that Black Friday is the busiest shopping day in the United States with other states declaring it as an official public holiday for people who are working in state governments.