How many periods are there in NBA games?

4 quarters, 12 minutes each. The game is divided into two halves. First half is 1st Quarter and the 2nd Quarter followed by a 15 minute half time. And after half time, 3rd and 4th Quarter are played. If the game is tied, there's a 5 minute overtime after the 4th Quarter. read more

The allotted time of a NBA game is 48 minutes, split into 4 quarters of 12 minutes but normally it takes a much longer time to finish an NBA game as there are so many interruptions and delays involve in a game. read more

There must be two 100-second timeouts in the first and third periods and three 100-second timeouts in the second and fourth periods. If neither team has taken a timeout prior to 5: 59 of the first or third period, it shall be mandatory for the Official Scorer to take it at the first dead ball and charge it to the home team. read more