The flight from Dallas-Fort Worth (DFW) to Tokyo (HND) takes about 12h 42m nonstop on a widebody airliner, covering 6,448 miles (10,378 km).
Tokyo is 14 hours ahead of Dallas-Fort Worth. You cross 14 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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