The time required for car wash and auto detailing services in California depends on the type of service selected, the size of the vehicle, and its overall condition. A basic exterior car wash is typically completed in 10 to 20 minutes, making it a quick option for routine cleaning. A full-service auto detailing, which includes thorough interior and exterior cleaning, waxing, polishing, and detailing, generally takes 2 to 5 hours. Premium detailing services, such as ceramic coating, paint correction, or extensive interior restoration, may require a full day or longer to achieve the best results. Factors such as vehicle size, the level of dirt or staining, and any additional protective treatments can also affect the total service time. Many professional detailing shops offer appointment scheduling to ensure efficient service and minimize wait times.