SUMMARY: The Time of Building brings together Mumtaz’s reflections on architecture and history with rare photographs, drawings and archival documents. Moving from the precision of the stonemason’s chisel to the expansive imagination of the urban planner in an era of climate change, Mumtaz offers critical insights into architecture’s relationship to time, politics, craft and the sacred. His words and buildings provide a powerful example of South Asia’s vitality as a site for rethinking modern architectural thought. They bear critical lessons for the present and the future – the question of what architecture could and should be in a world shaped increasingly by inequality, environmental crisis and scarcity.