Jet Lag Calculator
Predict jet lag severity and get a personalized recovery plan based on your home timezone, destination timezone, flight duration, and direction of travel. Flying eastbound is typically harder on the body than westbound — our calculator accounts for this and gives you practical advice to adjust faster.
How it works
Enter your departure and arrival timezones, flight duration, and whether you are traveling eastbound or westbound. The calculator estimates how many days it will take to adjust and provides recommended sleep, light exposure, and meal timing advice.
Tips for beating jet lag
- Adjust your sleep schedule gradually before departure
- Stay hydrated and avoid alcohol on the plane
- Expose yourself to natural light at the destination
- Consider melatonin to shift your circadian rhythm
- Choose flights that arrive in the evening local time