In an official NBA schedule, each team plays 82 games each season, including four games each against its four in-division opponents (16 games), four games each against six out-of-division opponents (24 games), three games each against the remaining four out-of-division opponents (12 games) and two games each against the 15 teams in the opposite conference (30 games). The four out-of-division opponents that are played three times each are determined by a five-year rotation.