The term "extra time" refers to an additional period of playing time added onto a match or game, usually in order to make up for lost time due to delays or interruptions. This extra time is often used in sports such as soccer, basketball and football where the game can be stopped temporarily while play resumes after a goal is scored or an injury occurs. The amount of extra time added varies depending on the rules of the sport but it usually ranges from 5 to 30 minutes. In some cases, if the match is still tied at the end of extra time, penalty kicks may be taken to determine the winner.