This amounts to approximately 29 and 24 hours per week of mental labor for mothers and fathers, respectively. (sciencedaily.com)
Overall, Offer found that working mothers engaged in mental labor in about one fourth, and working fathers in one fifth, of their waking time. (sciencedaily.com)
However, mothers and fathers both spent about 30 percent of the time they were engaged in mental labor thinking about family matters. (sciencedaily.com)