<P> In the North American National Basketball Association , the rule on timeouts is more complex . Teams are allowed one 20 - second timeout per half , and six regular timeouts , of one minute in length over the course of the entire game . During a 20 - second timeout , only one player may be substituted . During a regular timeout , there is no limit on substitutions . In the first and third quarter , there must be two 100 - second timeouts . If neither team has taken a timeout prior to 6 : 00 of the first or third period , the Official Scorer must take it at the first dead ball and charge it to the home team . If no subsequent timeouts are taken prior to 3 : 00 , the Official Scorer must take it and charge it to the team not previously charged . In the second and fourth quarter , there must be three 100 - second timeouts . If neither team has taken a timeout prior to 9 : 00 of the second or fourth period , a mandatory timeout is called by the Official Scorer and charged to neither team . If there are no subsequent timeouts taken prior to 6 : 00 , the Official Scorer must take it at the first dead ball and charge it to the home team . If no subsequent timeouts are taken prior to 3 : 00 , the Official Scorer must take it and charge it to the team not previously charged . In the fourth quarter , each team is limited to a maximum of three timeouts and if a team has two or three full timeouts remaining when the fourth period reaches the 2 : 00 mark , one of the timeouts will be changed to a 20 - second timeout and it will retain one full timeout . In overtime periods , each team shall be allowed two 60 - second timeouts and one 20 - second timeout . If a team has two full timeouts remaining when the overtime period reaches the 2 : 00 mark , one of the timeouts will be changed to a 20 - second timeout . </P>
<P> In the North American National Basketball Association , the rule on timeouts is more complex . Teams are allowed one 20 - second timeout per half , and six regular timeouts , of one minute in length over the course of the entire game . During a 20 - second timeout , only one player may be substituted . During a regular timeout , there is no limit on substitutions . In the first and third quarter , there must be two 100 - second timeouts . If neither team has taken a timeout prior to 6 : 00 of the first or third period , the Official Scorer must take it at the first dead ball and charge it to the home team . If no subsequent timeouts are taken prior to 3 : 00 , the Official Scorer must take it and charge it to the team not previously charged . In the second and fourth quarter , there must be three 100 - second timeouts . If neither team has taken a timeout prior to 9 : 00 of the second or fourth period , a mandatory timeout is called by the Official Scorer and charged to neither team . If there are no subsequent timeouts taken prior to 6 : 00 , the Official Scorer must take it at the first dead ball and charge it to the home team . If no subsequent timeouts are taken prior to 3 : 00 , the Official Scorer must take it and charge it to the team not previously charged . In the fourth quarter , each team is limited to a maximum of three timeouts and if a team has two or three full timeouts remaining when the fourth period reaches the 2 : 00 mark , one of the timeouts will be changed to a 20 - second timeout and it will retain one full timeout . In overtime periods , each team shall be allowed two 60 - second timeouts and one 20 - second timeout . If a team has two full timeouts remaining when the overtime period reaches the 2 : 00 mark , one of the timeouts will be changed to a 20 - second timeout . </P>
how long is an nba 20 second timeout
how long is an nba 20 second timeout
20 - second
20 - second