A NY Times article by Claire Cain Miller explores the gender differences in unpaid work:
Worldwide, women spend an average of 4.5 hours a day on unpaid work, including grocery shopping, child care and laundry. That is more than double the amount of time men spend, according to O.E.C.D. data. Men spend significantly more time on paid work and also on leisure activities, which include playing sports, watching TV and hanging out with friends.
Relative to women, men spend the most time doing chores in the Scandinavian countries, and the least time in India, Mexico, Turkey and Japan. In Norway, for instance, women spend just over 3.5 hours a day on unpaid work and men spend three hours. In India, women spend six hours and men spend less than an hour. When not making a comparison with women, South Korean men come out last at 0.7 hours.
In the United States, women spend about four hours a day on unpaid work, compared with about 2.5 hours for men. The difference starts early: American girls ages 10 to 17 spend two more hours than boys on chores each week, and boys are 15 percent more likely to be paid for doing chores, according to a University of Michigan study.