First, start shifting your sleep schedule by an hour or two a few days before your departure. Second, stay well-hydrated throughout your flight by drinking plenty of water and avoiding excessive caffeine or alcohol. Third, once you arrive at your destination, try to get as much natural sunlight as possible during the day—it helps reset your circadian rhythm naturally. Finally, resist the urge to take a long daytime nap on your first day; instead, push through until bedtime to get back on track!