The flight from Newark (EWR) to Hong Kong (HKG) takes about 15h 48m nonstop on a widebody airliner, covering 8,053 miles (12,960 km).
Hong Kong is 12 hours ahead of Newark. You cross 12 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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