The Super Bowl is not held on the same day each year. Since Super Bowl XXXVII in 2003, held at the Qualcomm Stadium in San Diego, the Super Bowl has taken place on various dates during the first week of February.
Prior to Super Bowl XXXVI in 2002, held at the Superdome in New Orleans, Louisiana, the Super Bowl was typically held during the last two weeks of January. In fact, every Super Bowl between Super Bowl XIII at the Orange Bowl in Miami, Florida, in 1979 and Super Bowl XXXV at the Raymond James Stadium in Tampa, Florida, in 2001 took place between January 20 and January 31. The first 12 Super Bowls, from Super Bowl I at the Los Angeles Memorial Coliseum in Los Angeles, California, and Super Bowl XII at the Super Dome in New Orleans, Louisiana, were played between January 9 and January 17.
The variation between these dates corresponds loosely to increases in the number of regular season games that the National Football League schedules for each team. Beginning in 2002, and for brief periods prior to that, the NFL scheduled 16 regular season games per season per team, to be played over the course of 17 weeks. In 1979, the NFL scheduled the same number of games to be played in 16 weeks. Prior to 1979, the NFL scheduled 14 or fewer games per season per team over a period of 14 or fewer weeks, a significantly shorter timeframe than the modern format.