Sleeptly

Jet lag plan

New YorkTokyo

Tokyo is 11 hours behind New York. You're traveling west the easier direction. Your body delays its clock.

About 10,852 km northwest · approximately 13.5-hour non-stop flight · an ultra-long-haul flight.

3 days before departure

Bedtime
Move bedtime 3h later than normal
Wake
Wake 3h later
Light
Bright light in the evening (extend exposure past sunset)
Avoid light
Wear sunglasses or stay indoors during morning hours
  • Delaying the clock is generally easier than advancing it.

2 days before departure

Bedtime
Move bedtime 2h later than normal
Wake
Wake 2h later
Light
Bright light in the evening (extend exposure past sunset)
Avoid light
Wear sunglasses or stay indoors during morning hours
  • Delaying the clock is generally easier than advancing it.

1 day before departure

Bedtime
Move bedtime 1h later than normal
Wake
Wake 1h later
Light
Bright light in the evening (extend exposure past sunset)
Avoid light
Wear sunglasses or stay indoors during morning hours
  • Delaying the clock is generally easier than advancing it.

On the flight

  • Set your watch to the destination time when you board.
  • Stay awake as long as you reasonably can if you’re flying west (your day is getting longer).
  • Avoid alcohol and excess caffeine.
  • Hydrate steadily.

Day of arrival

Bedtime
Stay up until local bedtime; resist napping before evening
Light
Evening bright light at the destination
Avoid light
Dim morning light for the first day or two — sunglasses on the way to breakfast
  • Westward jet lag usually resolves within 1 day per 1.5h of shift.

Day 2 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 3 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 4 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 5 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 6 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 7 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

Day 8 at destination

Light
Evening light, especially around sunset
  • Eat meals on the local schedule.
  • Most westward travelers feel normal within 2–4 days.

About the New YorkTokyo route

The route from New York, United States to Tokyo, Japan covers roughly 10,852 kilometres in a northwest direction. At standard jet cruise speed plus a one-hour allowance for taxi, climb, and descent, a non-stop flight takes about 13.5 hours. Both cities sit in the northern hemisphere, so the seasonal direction of daylight (longer days in June, shorter in December) matches between origin and destination.

New York is in the temperate zone. Day length varies by four to six hours between summer and winter, so the season of your trip materially affects available morning and evening light. Tokyo is in the temperate zone. Day length varies by four to six hours between summer and winter, so the season of your trip materially affects available morning and evening light.

Business-hours overlap

With a 11-hour offset, the standard 09:00–18:00 working days in New York and Tokyo do not overlap. Live collaboration on this route requires at least one side to take an early or late call. The least costly compromise is usually an early-morning call in Tokyo and a late-evening call in New York.

Daylight saving on this route

Only one of the two cities observes daylight saving time, so the offset between them shifts by one hour twice a year. If you have recurring meetings on this route, double-check the local time around the DST transitions (March and October/November in the northern hemisphere).

Your chronotype on this route

If you are a lark (morning type): Westward travel is the easier direction and larks usually feel close to baseline within 6 days. The risk for larks is overshooting: stay up later than you feel like at the destination for the first two nights to avoid waking before local sunrise.

If you are a night owl (evening type): Westward travel suits owls because the body prefers delaying over advancing. A 11-hour westward shift typically clears in 6 days. Stay outside in the evening light at the destination and avoid early-morning bright light for the first three days.

Not sure of your chronotype? Take the 10-question quiz.

Frequently asked questions

How long is the flight from New York to Tokyo?

The great-circle distance from New York to Tokyo is about 10,852 kilometres. A typical non-stop flight takes around 13.5 hours at standard cruise speed; routes with connections add two to four hours.

What is the time difference between New York and Tokyo?

Tokyo is currently 11 hours behind New York. Only one of the two cities observes daylight saving time, so the offset between them shifts by one hour twice a year. If you have recurring meetings on this route, double-check the local time around the DST transitions (March and October/November in the northern hemisphere).

Is jet lag worse flying east or west on this route?

Westward travel — which this route is — is the easier direction. Your body delays its clock, which is closer to its natural tendency. Most travellers clear a 11-hour westward shift in 8 days.

Should I take melatonin for the New York → Tokyo trip?

For a 11-hour shift, 0.3 to 0.5 mg of melatonin taken three to five hours before target bedtime at the destination is the dose supported by the Cochrane review. Higher doses (3–5 mg) do not advance phase better and increase morning grogginess. Start one day before departure.

Do I need a pre-trip schedule shift for New York → Tokyo?

Yes — for shifts of four hours or more, shifting bedtime and wake time by one hour per day, starting three days before departure, materially reduces post-arrival jet lag.

What chronotype handles this route best?

Owls (evening types) recover faster on westward routes because the body prefers delaying over advancing. Larks may overshoot — they should stay up later than they feel like at the destination for the first two nights.

Sources

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