The flight from Las Vegas (LAS) to Hong Kong (HKG) takes about 14h 14m nonstop on a widebody airliner, covering 7,285 miles (11,725 km).
Hong Kong is 15 hours ahead of Las Vegas. You cross 15 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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