I built LumiSync because jet lag kept wrecking the first days of every trip I took. I'd land, push through on caffeine, and lose 3–4 days feeling foggy — right when I actually wanted to be present. The frustrating part: the science for beating jet lag has existed for decades. Your body clock shifts based on when you get bright light and when you avoid it. But actually applying it means tracking your circadian low point, time zones, and light timing by hand — nobody does that on a trip. So LumiSync does the math for you. You enter your trip, and it builds a day-by-day schedule of when to seek light, when to avoid it, and when to sleep — tuned to your body clock and destination. No pills, no guesswork. The hardest part wasn't the algorithm (that's grounded in published circadian research) — it was making something genuinely global. It ships in 11 languages, respects each user's local time and locale formatting, and the light schedule stays scientifically correct no matter where you're flying from or to. Your first trip is free, so you can feel the difference before deciding. Would genuinely love your feedback — especially if you're a frequent traveler. What's your worst jet lag story?

LumiSync: Jet Lag Planner

LumiSync is a jet lag planner

LumiSync is a jet lag planner