Readers familiar with the workhorse of cosmology, the hot big bang model, may think that cosmology raises little of interest about time. As cosmological models are just relativistic spacetimes, time is understood as it is in relativity theory, and all cosmology adds is a few bells and whistles such as inflation and the big bang and no more. This chapter shows that this opinion is not completely right—and may well be dead wrong. It also shows how the hot big bang model invites deep questions about the nature of time, how inflationary cosmology has led to interesting new perspectives on time, and how cosmological speculation continues to entertain dramatically different models of time altogether. After a brief treatment of time in the standard model, the chapter provides the reader a sense of some of the live options available for time in cosmology which are of philosophical interest.