Every November, America hits the road. Whether it's families heading home, friends gathering for "Friendsgiving," or travelers chasing a long weekend getaway, the nation's interstates see some of their heaviest use of the year. In fact, AAA estimates that over 80 million people travel more than 50 miles  during Thanksgiving week, with the majority traveling by car. That makes the week leading up to Thanksgiving one of the most congested—and dangerous—times for highway travel.

From Eastern to Pacific, drivers might cross three or more time zones, with daylight saving adding extra complexity. Some states split between different time zones, while Hawaii and Arizona skip daylight saving entirely. This guide helps interstate travelers navigate America's complicated relationship with time, ensuring your reservations stay on schedule and you're never caught by surprise when your phone suddenly jumps ahead (or behind) your dashboard clock.