NFL schedules determined in advance were set by a formula made by the NFL in 2001. The 2008 NFL schedule was set based on that formula and the NFL dates determined factor will remain the same in 2009. NFL dates determined in advance are easy enough to figure out. The 2008 NFL schedule has each team playing their three division opponents, home and away each season. NFL schedules determined action shows that each team plays a total of four teams from another division within its conference on a rotating basis. That accounts for three more games on each season’s NFL schedules determined in advance. NFL schedules determined games also show that each team will play two games within the conference based on the previous year’s standings.