The maximum total driving time for one driver under current Le Mans rules is 14 hours. The limit applies across the 24-hour race, so teams must divide the workload among their three-driver crews rather than relying on one specialist for most of the event.
That total is only one part of the restriction. A driver may also drive no more than four hours in any six-hour period, preventing teams from simply placing long consecutive stints on one driver. In LMP2 and LMGT3, drivers also have minimum driving requirements, while Hypercar regulations differ in some respects.
The rule is easy to confuse with the four-hour limit: four hours is the rolling six-hour restriction, not the race-long maximum. The 14-hour ceiling is intended to protect driver welfare while preserving the endurance character of the event. It also makes pit-stop timing, traffic, weather and safety-car periods strategically important, because lost track time can force teams to rebalance the drivers’ schedules.