The regular season of NBA starts from last week of October. Prior to the regular season, a training camp is held from late September that ends with preseason exhibition games. The 30 teams that make up the NBA play 82 games with each other during the regular season. 41 games are played at homes of the franchised teams and 41 are played at various other places. NBA essentially comprises of two conferences – the Eastern conference and the Western conference each consisting of three divisions. The Atlantic, the Central and the Southeast divisions make up the Eastern conference and the Northwest, Pacific and the Southwest divisions make up the Western conference.
Each division has 5 teams in it and one team play against the other 4 teams at least 4 times in a year that is each team plays 16 games against the teams in its own division. Then again each team plays 4 times against six teams from the other 2 divisions of its own conference totaling to 24 games. The balance 4 teams play 3 times totaling to 12 games. And finally each team has to play 2 games with the teams of the other conference totaling to 30 games