is the day after christmas a federal holiday

Yes, the day after Christmas is a federal holiday in the United States called "Boxing Day." Boxing Day is a holiday that originated in the UK and has since been celebrated in many countries around the world, including Canada and Australia. On Boxing Day, people typically exchange gifts, spend time with family, and engage in activities such as caroling, baking, and visiting with friends. The day after Christmas is also known as "Saint Stephen's Day" in some countries, and it is a time for reflection and gratitude for the year that has passed.