The flight from Los Angeles (LAX) to Narita (NRT) takes about 10h 45m nonstop on a widebody airliner, covering 5,439 miles (8,753 km).
Narita is 16 hours ahead of Los Angeles. You cross 16 time zones heading east. Eastbound trips like this one tend to be harder to adjust to, so plan for a day or two of jet lag.
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