Final answer:
The specific hours a provisional license class-D holder may not drive typically start at midnight, with the restriction ending at a time determined by local laws, often in the early morning hours.
Step-by-step explanation:
The rules concerning the hours during which a provisional license class-D holder may drive vary by state or region, often as part of a Graduated Driver Licensing (GDL) program. Typically, these restrictions are to ensure the safety of new drivers by limiting their exposure to high-risk driving situations. Generally, a new driver with a provisional license may not drive unattended during late night hours, often starting at midnight, but the exact time when these restrictions lift can differ from one location to another — it could be as early as 5 AM or as late as 6 AM. It is essential for the holder of a provisional license to know the specific driving restrictions in their state to comply with the law and maintain the validity of their driving privileges.