The minimum duration of an Endurance race is four hours for all events in the Asian Le Mans Series and the European Le Mans Series. For races at a higher level, that is to say in WEC (world endurance championship) and IMSA, they range from six to 24 hours for the most demanding, such as Daytona (United States), the Nürburgring (Germany), and the 24 Hours of Le Mans, the jewel of the WEC.