When does Night Time officially begin?

Nighttime officially begins one-half hour after sunset as defined by various traffic and transportation codes. This timeframe allows for the gradual decrease in natural light and the transition into darker conditions, which can significantly impact driving and safety on the road. Understanding this definition is crucial for law enforcement officers and drivers alike, as it affects visibility, vehicle lighting requirements, and the responsibilities of motorists during low-light conditions.

The other options do not accurately represent the officially recognized start of nighttime as established for traffic regulation purposes. For example, simply stating "at sunset" doesn't account for the diminishing light following sunset, which is important for ensuring safety on the roads. Similarly, midnight marks the middle of the night rather than the official start, and an hour after sunset extends the evening well beyond typical definitions of night, potentially creating confusion around legal implications and safety measures.