When should you use your headlights? Posted on July 29, 2013 by davepoobond Leave a comment When should you use your headlights? Anytime you can't see at least a mile ahead. Anytime you have trouble seeing other cars. One hour after sunset. All the time. View Results Loading ... Share this:EmailFacebookTwitterMoreRedditTumblr Related Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.