Jet Lag Calculator

❓ What is a Jet Lag Calculator?

A jet lag calculator provides a scientifically-based plan to minimize the effects of jet lag when traveling across time zones. It analyzes your departure and destination time zones to give you specific recommendations for light exposure, sleep timing, and meal schedules before, during, and after your flight.

Jet lag occurs when your internal circadian clock is out of sync with the local time at your destination. The key to beating it is strategic light exposure—the most powerful tool for resetting your body clock. Our calculator tells you exactly when to seek or avoid bright light based on whether you're traveling east or west, helping you adjust 2-3 times faster than without a plan.