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Jet Lag Tokyo to Los Angeles (NRT–LAX): Timeline & Recovery Plan

Eastbound protocol (despite flying west) · NRT → LAX · effective 7-hour shift · Last updated & sources reviewed: August 2026

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Tokyo and Los Angeles long-haul route skyline
Image source: Unsplash (free-to-use license).

You leave Tokyo in the evening and land in Los Angeles the same morning — arriving, by the calendar, before you departed. Behind that trick sits a real adjustment: a 7-hour eastward shift in physiological terms, despite the westward flight. Expect around 7 days for full realignment and 3–4 to feel functional. Same route as the outbound, roughly two days longer to recover.

A note on seasonal variation: Japan has no daylight saving; California does. The gap is 16 or 17 hours by season and the effective shift 7 or 8 hours. Flight timings are approximate estimates that vary with season, airline and winds. Operational planning in this guide follows three primary evidence anchors: recovery speed is usually approximately one circadian hour per day eastward and somewhat faster westward (Waterhouse et al., 2007); light timing effects follow the human phase response curve, so morning and evening exposure can shift the clock in opposite directions (Khalsa et al., 2003); and melatonin evidence is strongest for correctly timed short-term use after eastbound travel (Herxheimer & Petrie, 2002). For practical timing details, see our melatonin guide. If you use melatonin, check timing and interactions with a pharmacist or doctor.

Why This Route Feels the Way It Does

Direction inverts, and this time it works against you. The Pacific crossing westward puts Los Angeles behind Tokyo on the clock, which reads as westward travel and its gentler recovery. But the body takes the short path: a 7-hour advance rather than a 17-hour delay. That advance is the direction human circadian biology resists, which is why this leg costs about two days more than the outbound despite being shorter in the air.

The flight is the easy part here. Tokyo to Los Angeles picks up the Pacific jet stream and runs meaningfully shorter than the westbound leg — often by more than an hour in winter. You arrive less physically wrecked than you did going out. The clock is the problem, not the crossing.

You gain a calendar day. Departing Tokyo Tuesday evening lands you in Los Angeles Tuesday morning. It's a genuinely useful quirk for business travel — you get the working day back — and a trap if you plan on using it. The morning you arrive into is not a morning your body has any use for.

A caveat. On gaps above 12 hours the direction of re-entrainment is less predictable than the arithmetic implies. Treat these figures as planning estimates.

Recovery Timeline

DayWhat's happeningWhat to do
Day of travelLand in the LA morning having left Tokyo the previous eveningGet outside on arrival; resist treating the "extra" day as usable
Days 1–2Trouble falling asleep at a local hour; wired late eveningsMorning light daily; dim the evening; naps capped at 20–30 minutes
Days 3–5Sleep onset improving, afternoons still softHold the schedule; keep the evening dim
Days 6–7Near-full alignmentNormal routine

The signature symptom here is difficulty falling asleep rather than early waking — the mirror image of the outbound leg.

Before You Fly

Seven effective hours eastward is worth preparing for:

  • Shift sleep earlier by 30–60 minutes for three or four nights before departure.
  • Get morning light in Tokyo in the run-up.
  • Arrive rested. An eastward advance is hard enough without starting it short on sleep.

In Flight

  • Set your phone to Los Angeles time at the gate.
  • Sleep early in the flight. On an evening Tokyo departure landing in the LA morning, the useful sleep is in the first half — you want to arrive having had something resembling a night, because you're walking into a full LA day.
  • Skip alcohol.
  • Charge every device before boarding. Japanese departure rules mean no in-flight power bank use.
  • Consider the last meal service carefully. Eating heavily an hour before landing into an LA morning sets your digestive clock backwards.

On Arrival

  • Get outdoor morning light immediately. You land into an LA morning and, unusually, that lines up perfectly with what an eastward advance needs. Take the opportunity — it's the one thing this route makes easy.
  • Don't use the "extra" day. The calendar hands you a working morning your body thinks is the middle of the night. Treat it as recovery time.
  • Dim the evening. Bright light late pulls your clock the wrong way at the moment you'll be tempted to stay out.
  • Cap naps at 20–30 minutes.
  • Eat at LA times from the first meal.

Know Your Airports: NRT and LAX

Departing from Narita International Airport (NRT)

  • Narita is 60 km east of central Tokyo — 60–90 minutes by Narita Express, Keisei Skyliner or bus. Build this into your departure planning; it's the biggest practical difference from Haneda.
  • Terminals 1 and 2 handle full-service carriers, Terminal 3 the low-cost airlines. Terminal 3 has no train station of its own — a 10-minute walk or short shuttle from Terminal 2.
  • The night curfew matters for late departures: aircraft generally can't take off between roughly 23:00 and 06:00. Most public terminal areas run 05:00 to midnight, with some sections open around the clock.
  • Terminal 1's "Narita Nakamise" shopping street is a genuinely good place to spend a pre-flight hour, better than the usual airport retail.

Arriving at Los Angeles International Airport (LAX)

  • Most international arrivals come through Tom Bradley International Terminal (TBIT).
  • Distances are long. Terminal 1 to Terminal 7 is a 20–25 minute walk. If you're connecting, check the gap.
  • Rideshare and taxi pickups are at LAX-it, a centralized lot east of Terminal 1 rather than the terminal curbs — a short walk or dedicated shuttle. Worth knowing before you land, because discovering it at the curb after ten hours is not the moment.
  • Airside walkways now connect Terminal 1 through Terminal 8, roughly two miles end to end, so domestic connections no longer require re-clearing security in most cases.

A Few Fun Facts to Pass the Time in Line

At NRT:

  • The airport was built over a decade of fierce local resistance — the Sanrizuka Struggle, in which farmers and student activists fought the plans through the late 1960s and 1970s. It opened in 1978 under extraordinary security.
  • The night flight curfew is a direct legacy of the noise agreements from that dispute.
  • Terminal 3 is laid out like a running track, with a coloured lane instead of moving walkways.
  • Terminals 1 and 2 both have large outdoor observation decks for plane-watching.

At LAX:

  • The Theme Building — a 1961 Space Age flying saucer on four parabolic legs — is the airport's defining landmark and a city Historical-Cultural Monument.
  • Its observation deck closed after 2001, briefly reopened in 2010, and the Encounter restaurant inside shut for good in 2013.
  • Los Angeles hosted air meets and zeppelin demonstrations in the 1910s and 1920s; LAX only became the region's principal airport in 1946.
  • TBIT's roofline was designed to read as a Pacific wave from the air.

What to Buy

For the flight itself

Ten hours is long enough for the standard kit, though this is the shorter of the two Pacific crossings. Prioritise an eye mask, since sleeping early in the flight matters here. Charge everything before boarding.

For your first days in Los Angeles

Sunglasses, genuinely useful in LA and helpful for managing an over-lit first day. A plan for getting outside in the morning. If you take melatonin, this is physiologically an eastward trip despite flying west — the timing follows the eastbound pattern.

Souvenirs and local specialties

From Tokyo, before you fly:

  • Narita Nakamise in Terminal 1 has the best traditional souvenir selection of any airport in this series.
  • Region-exclusive KitKat flavours and character goods, which Narita stocks unusually well.
  • A Japanese knife, checked baggage only.

From Los Angeles, before you fly home:

  • California wine, checked baggage only, within Japanese duty limits.
  • Coffee from a Southern California roaster.
  • Skip fresh produce — Japanese quarantine on plant and meat products is strictly enforced.

What You Can't Pack

Flying out of NRT (Japanese rules)

  • Maximum two power banks per passenger, each 160Wh or under, cabin only, never checked.
  • In-flight power bank use has been banned since April 2026 on flights to and from Japan, including transits — no charging your phone, no charging the bank from a seat outlet.
  • Keep power banks visible, not in the overhead bin.
  • Liquids: 100ml containers in one 1-litre clear resealable bag.
  • All bladed items banned from the cabin, including nail clippers and scissors.
  • One lighter per person, on your person. Torch-type and windproof jet lighters banned from both cabin and hold.
  • Duty-free liquids purchased abroad may be confiscated at Japanese security if you're connecting onward.

Flying out of LAX — for your return or connections (TSA rules)

  • 3-1-1 liquids: over 3.4 oz (100ml) in the hold.
  • Power banks carry-on only; over 27,000mAh (100Wh) banned from both.
  • Foldable knives and multi-tools banned from carry-on regardless of blade length.
  • Alcohol above 140 proof banned entirely.

Confirm with your airline and the national regulator before departure.

Frequently Asked Questions

How long does jet lag from Tokyo to Los Angeles actually last? About 7 days for full realignment, 3–4 to feel functional. The 17-hour clock gap becomes an effective 7-hour eastward shift, and eastward adjustment runs at roughly an hour a day.

How do I arrive before I left? You cross the international date line westward and gain the day back. Tokyo Tuesday evening becomes Los Angeles Tuesday morning. It's a calendar effect, not a circadian one — your body has still been awake the whole time.

Should I work the day I land? The calendar says you can. Your clock disagrees: it's the middle of your night. If the meeting can move, move it.

Why is this harder than the outbound flight when it's shorter? Because the effective direction differs. Tokyo to LA is an eastward advance, which biology resists; LA to Tokyo is a westward delay, which it tolerates. Shorter flight, longer recovery.

Key Takeaways

  • The 17-hour clock gap becomes an effective 7-hour shift, running eastward despite the westward flight.
  • Morning light on arrival is the tool — and unusually, landing into an LA morning makes that easy.
  • Baseline recovery is about 7 days against 5 for the outbound: same route, two days more.
  • The calendar hands you a day back; your circadian system does not recognise it.

This article reflects general circadian rhythm research and is not medical advice. Individual recovery time varies. This page contains affiliate links; we may earn a commission at no extra cost to you.

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