The flight from Las Vegas (LAS) to Dublin (DUB) takes about 8h 21m nonstop on a widebody airliner, covering 4,941 miles (7,952 km).
Dublin is 8 hours ahead of Las Vegas. You cross 8 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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