The flight from Sepang (KUL) to Honolulu, Oahu (HNL) takes about 12h 14m nonstop on a widebody airliner, covering 6,814 miles (10,967 km).
Honolulu, Oahu is 18 hours behind Sepang. You cross 18 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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