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LumiSync is a jet lag planner grounded in sleep-science research. It tells you when to seek light, when to avoid it, and when to sleep — tailored to your trip. No pills: use light and daily rhythm to help your body clock shift to the destination faster.
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?
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About LumiSync: Jet Lag Planner on Product Hunt
“LumiSync is a jet lag planner”
LumiSync: Jet Lag Planner was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #27 on the daily leaderboard. LumiSync is a jet lag planner grounded in sleep-science research. It tells you when to seek light, when to avoid it, and when to sleep — tailored to your trip. No pills: use light and daily rhythm to help your body clock shift to the destination faster.
LumiSync: Jet Lag Planner was featured in Android (57.3k followers), Travel (42.3k followers) and Health (6.7k followers) on Product Hunt. Together, these topics include over 61.1k products, making this a competitive space to launch in.
Who hunted LumiSync: Jet Lag Planner?
LumiSync: Jet Lag Planner was hunted by L Cube Yoo. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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L Cube Yoo