Models of time use need to consider especially the reproductive and productive activities of women and men. For husband-wife families, the breadwinner, one-earner, or complementary-roles model has advantages in terms of efficiency or specialization and stability; however, it is a high-risk model for women and children. The alternate model has been called two-earner, companionship, "new families," or collaborative in the sense of spouses collaborating in the paid and unpaid work needed to provide for and care for the family. Adopting the common metric of time use to study paid and unpaid work, we find that the complementary-roles model remains the most common, and the "double burden" is the second most frequent; however, there is some evidence of change in the direction of shared-roles arrangements, especially for younger couples with children, when both are employed full-time.