Question Headlights must be used: Answers After 6 p.m. and before 7 a.m. After 7 p.m. and before 6 a.m. After 8 p.m. and before 7 a.m. From sunset to sunrise. Explanation Your vehicle's headlights must be activated between sunset and sunrise. Use headlights any time you are driving under conditions that lower visibility. Take a FREE Practice Test Now This questions appears in the following tests: Nebraska Practice Test