Driving at Night: What Changes and How to Adjust

You can't drive faster than your headlights let you stop. · Updated July 12, 2026

Traffic deaths per mile are roughly three times higher at night — which is why most states' GDL rules require logged night practice hours and restrict late-night teen driving. The physics is simple: low-beams light about 250–350 feet, and at 60 mph you travel that far in under four seconds. The rules follow from that:

Don't overdrive your headlights. If you couldn't stop within the lit distance, you're going too fast — the phrase "overdriving your headlights" appears in test banks verbatim.
Headlights on from sunset to sunrise — state laws typically require them 30 minutes after sunset to 30 minutes before sunrise, and whenever visibility drops (many states: whenever wipers are on).
Dim your high beams within ~500 feet of oncoming traffic and ~300 feet when following (exact distances vary by state — they're tested, so check your manual).
Beat the glare: when headlights blind you, look to the right edge line of your lane and use it to steer until the car passes. Never stare into the lights.
Add following distance. Your 3-second daytime gap should become 4+ at night; hazards appear later and closer.

🎯 Log your night hours properly — most states require a specific number (track them free here against your state's real requirement), and the headlight-distance numbers above are among the most common night-driving questions in the verified banks.

📱 The knowledge behind the wheel starts with the knowledge test. PermitPal in your browser drills your state's handbook-verified bank until pass day is a formality. Free to start, $29.99 once. Also on the App Store and Google Play.