As structural inequalities within universities persist, universities increasingly develop diversity policies. Much diversity research focuses on the gap between universities' commitments and actual practices. This paper takes a different approach by scrutinizing how diversity documents enact politics of time that results in their selective non-performativity. We demonstrate how diversity documents at a Dutch university compose diversity as a problem of time for which the near future is crucial. It legitimizes action in the here-and-now to realize the diverse future, while simultaneously delegitimizes it by envisioning diversity as a problem that resolves itself in time. Along such urgent, yet inevitable progress, a competition between gender and ethnic diversity emerges. As the documents engage in a white politics of time, change for white women becomes realizable in concrete, time-bound actions. In contrast, people of color appear to lag behind and have yet to arrive in a time where progress could be achieved.