Jet Lag from Paris to Tokyo

Tokyo runs 7 hours ahead of Paris — a eastbound shift over a roughly 12-hour flight. Expect about 7 days to feel close to normal in Tokyo.

What to expect

Eastward shifts compress the day and fight the natural drift of the human circadian rhythm, so they tend to feel harder than westward shifts of the same magnitude.

Adjustment playbook

• Shift bedtime earlier by ~1 hour per day before departure.
• Reset your watch to Tokyo time at boarding.
• On arrival, get bright morning light and avoid bright evening light.
• Caffeine in the morning only.

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