Korean women spend an hour and 36 minutes on household chores every day but their husbands only 18 minutes, even in double-income families.
Men also usually sleep more than their wife.
The findings come from a study by Cho Mi-ra at Seoul National University of 3,131 couples in their 20s to 50s.
Cho divided couples into nine categories based on the working hours of husbands and wives and analyzed how much time each spent a day on work, household chores, sleep and leisure.
In double-income couples where both husband and wife work more than 10 hours at work, the women spent an hour and 18 minutes more a day on household chores than the men.