Headlights must be turned on 30 minutes after sunset. This rule is in place to ensure that drivers can see the road clearly and are visible to other road users when the natural light decreases in the evening. By requiring headlights to be used at this time, it promotes safer driving conditions as visibility can be significantly reduced.
The period of dusk can vary, and it may not be fully dark immediately after sunset, which is why specific regulations have been established to enforce the use of headlights to enhance safety. This also mandates that vehicles are equipped with functioning lights to ensure that they are adequately illuminated during low-visibility conditions, therefore reducing the risk of accidents.
The other scenarios mentioned, such as 30 minutes before sunset or at dusk, do not align with the standard practice, as those times may still provide sufficient natural light. Additionally, restricting the use of headlights to nighttime only fails to address the varying conditions that can arise during twilight, which can still pose visibility challenges. Therefore, the requirement to switch on headlights 30 minutes after sunset is a critical safety measure in driving regulations.