This article uses diary data from the most recent Australian Bureau of Statistics Time Use Survey to compare by gender total child care time calculated in the measurements of main activity, main or secondary activity, and total time spent in the company of children. It also offers an innovative gender comparison of relative time spent in the activities that constitute child care, child care as double activity, and time with children in sole charge. These measures give a fuller picture of (...) total time commitment to children and how men and women spend that time than has been available in previous time use analyses. The results indicate that compared to fathering, mothering involves not only more overall time commitment but more multitasking, more physical labor, a more rigid timetable, more time alone with children, and more overall responsibility for managing care. These gender differences in the quantity and nature of care apply even when women work full-time. (shrink)