The flight from New York (JFK) to Bangkok (BKK) takes about 14h 47m nonstop on a widebody airliner, covering 8,667 miles (13,949 km).
Bangkok is 11 hours ahead of New York. You cross 11 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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