The flight from Hong Kong (HKG) to Dublin (DUB) takes about 12h 1m nonstop on a widebody airliner, covering 6,108 miles (9,830 km).
Dublin is 7 hours behind Hong Kong. You cross 7 time zones heading west. Westbound trips like this one are usually a little easier to adjust to, so plan for a day or two of jet lag.
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