A Formula One race weekend is an auto racing event which takes place over three days, with a series of practice and qualifying sessions prior to the race on Sunday. Current regulations provide for two free practice sessions on Friday, a morning practice session and an afternoon qualifying session held on Saturday, and the race held on Sunday afternoon or evening, although the structure of the weekend has changed numerous times over the history of the sport. Historically, the Monaco Grand Prix held practice on Thursday rather than Friday, and the whole schedule for the Las Vegas, Bahrain and Saudi Arabian Grands Prix is brought forward by one day. At most Formula One race weekends, other events such as races in other Fédération Internationale de l'Automobile (FIA) series, such as Formula 2 or Formula 3, are held.