When is it considered "night time" for driving purposes?

It is considered "night time" for driving purposes when the sun sets until it rises. This definition recognizes the period of reduced visibility due to the absence of natural light, which can significantly affect driving conditions. During this time, drivers are more vulnerable to hazards that are less visible and may require additional caution, such as using headlights and maintaining appropriate speeds.

Understanding this definition is crucial for safe driving practices, as it helps drivers prepare adequately for different lighting conditions. For instance, many traffic regulations and guidelines stipulate that headlights must be turned on during this time to ensure visibility for both the driver and other road users. The focus here is on the natural cycle of light and darkness rather than specific weather conditions, which is why the other options, which suggest arbitrary times or conditions, do not accurately capture the definition of night time for driving purposes.