New York Times - Economix: In Most Rich Countries, Women Work More Than Men
"... The chart [below] shows how much more time women spend than men on unpaid work (light blue bars); how much less time women spend than men on paid work (medium blue bars); and how much time over all women spend compared to men on paid and unpaid work combined (dark blue diamonds).
As you can see, across the member countries of the Organization for Economic Cooperation and Development, women spend 21 minutes more time, on average, in total work per day than men do. ..."