The flight from San Francisco (SFO) to Tokyo (HND) takes about 10h 12m nonstop on a widebody airliner, covering 5,148 miles (8,285 km).
Tokyo is 16 hours ahead of San Francisco. 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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