Ahead of Korea was Mexico, which ranked at No. 1 with 2,237 hours.
Korea previously held the No. 1 position for eight consecutive years from 2000-2007, but slid a notch in 2008.
The fall was largely attributed to the five-day workweek system that was introduced in 2004, according to industry sources. An increase in part-time workers also caused the working hours to fall, they said.
Koreans’ average working hours, however, still stood at 1.3 times the OECD average of 1,770 hours.