Jet lag plan: São Paulo to Tokyo
Free natural jet lag plan from São Paulo to Tokyo: 12 h time difference. Sleep, light, meals and caffeine timing day by day. Sleep: 22:00.
Sync nowYour sync plan: São Paulo → Tokyo
Time difference: +12 h · Eastbound · Phase delay — shift your clock later
General wellness guidance, not medical advice. Consult a health professional for medical conditions. We never recommend melatonin or any medication.
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FAQ
What is the time difference between São Paulo and Tokyo?+
Tokyo is +12 h from São Paulo, so you travel east.
How long does jet lag last from São Paulo to Tokyo?+
Following this plan, your body clock can be fully synced in about 13 days.
What causes jet lag?+
Your internal circadian clock stays on origin time while daylight, meals and social cues follow the destination. Symptoms last until the clock catches up.
Why is flying east harder?+
Going east requires advancing the clock (sleeping earlier), which the body does more slowly — roughly 1 h per day versus 1.5 h per day westbound.
How does light help?+
Light is the strongest signal for the body clock. Light at the right moment shifts it in the direction you need; light at the wrong moment pushes it the wrong way.
Do you recommend melatonin or sleeping pills?+
No. syncjetlag only uses natural levers: light, sleep timing, meals and caffeine. Talk to a doctor about any medication.
What if my trip is shorter than 48 hours?+
It's usually better to stay on your origin schedule. The planner switches to short-stay mode automatically.