When must headlights be turned on for night driving in Tennessee?

Headlights must be turned on from 30 minutes after sunset until 30 minutes before sunrise in Tennessee. This regulation is in place to ensure that drivers have adequate visibility to see the road and any potential hazards during the darker hours when natural light is insufficient.

Turning on headlights at this time improves safety not only for the driver but also for pedestrians and other vehicles. It enhances the visibility of the vehicle, allowing others on the road to see it more easily, which is particularly important during the hours of darkness when accidents are more likely to occur due to limited visibility.

The other options do not align with Tennessee's laws regarding headlight usage. For example, suggesting that headlights should be on at sunset itself may lead to periods of driving in twilight without adequate visibility. Additionally, stipulating to use headlights only during rain disregards the need for proper illumination during night-time driving conditions.