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When must you turn your vehicle headlights on?
什么时候必须打开汽车的头灯？
Use headlights from 30 minutes after sunset until 30 minutes before sunrise, and whenever you cannot clearly see a person or vehicle 100 metres away.
日落30分钟后至日出30分钟前，以及不能清楚看见100米远的人车时，须开启头灯。
阅读相关知识
Dip in fog and slow appropriately. Daytime running lights do not replace required headlights and tail lights.
雾或其他低能见度时使用近光，并按条件减速。日间行车灯不代替需要使用的头灯及尾灯。