Although not an official holiday, Super Bowl Sunday is an occasion when many families and friends gather together to watch the game, including those who are not normally football fans.
Super Bowl Sunday is the day on which the Super Bowl, the annual championship for the National Football League, is played. It is usually on the last Sunday in January or the first Sunday in February and is sometimes referred to as a holiday. The 50th annual event, called Super Bowl 50, occurred on February 7, 2016. Festivities for Super Bowl Sunday typically involve groups of people gathering to watch the game.
Source: wikipedia.org
In 2026 Super Bowl Sunday in USA falls on February 1.