Using data from the 2003 and 2004 American Time Use Surveys, this article examines nonstandard work hours and their relationship to parents' family, leisure and personal care time--informing the discussion of the costs and benefits of working nonstandard hours. The results suggest that parents who work nonstandard evening hours spend less time in some child-related activities than their counterparts who work standard daytime hours, but spend more time and more time alone with children. Married parents who work nonstandard hours spend less time with a spouse, and all parents with nonstandard hours get less sleep and watch less television than parents with standard work days. (Contains 8 tables and 1 figure.)