The twentieth anniversary of Splintering Urbanism’s publication is an apropos moment to consider the significance of time in, and for, critical infrastructure studies. This commentary brings Splintering Urbanism into dialogue with Lefebvre’s Rhythmanalysis to explore how time and temporality can (re)frame, extend, and challenge how we engage and analyze the networked metropolis. As an empirical concern, conceptual framework, and methodological approach, “infrastructure time” discloses commonalities and contradictions emerging across the infrastructure turn, enriching our understanding of the production of infrastructure space and helping us pose questions about urbanization, urban politics, and the urban condition in new and generative ways