Life & fun · February 23, 2026
Jet Lag Calulator
Calculate your jet lag recovery time for any flight
Jet Lag Calulator launched on February 23, 2026 with 2 votes, #6,500 of 16,627 launches that month.
What it does
I kept getting wrecked by jet lag flying around SE Asia and got tired of doing the math in my head every trip. So I built a calculator that actually tells you what to do. Pick your origin and destination airports, choose when you're landing, and it gives you: - Estimated recovery time (eastward travel is harder. the math is different) - Whether you're traveling east or west and why it matters - Personalized tips for light exposure, sleep timing, and meals based on your specific arrival time
Calculate your jet lag recovery time for any flight. Get a personalized recovery plan based on time zones, flight direction, and arrival time.
Enter your origin and destination airports to calculate the time zone difference and get a personalized recovery plan for your trip. Jet lag occurs when your body's internal clock (circadian rhythm) is out of sync with the local time at your destination. Your circadian rhythm is a roughly 24-hour cycle that regulates sleep, hormone production, body temperature, and digestion. It is primarily controlled by light exposure through the suprachiasmatic nucleus in the brain. When you cross multiple time zones rapidly by air, your body clock remains set to the departure city's time. This mismatch causes symptoms like daytime fatigue, nighttime insomnia, difficulty concentrating, digestive issues,…from departuremap.com
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