Jawaharlal Nehru was both a historian and a self-conscious agent of historical change. This essay explores his political thought by bringing these two perspectives together. I argue that his approaches to a number of issues, including the state project that has been his most significant legacy, shared a concern with linking together the past, present and future. My concern here is primarily with the post-1947 phase of Nehru's career, which was marked by key shifts in his political thought due to a perceived transformation of temporal experience and an altered relationship with history. By attending to the way his thought worked through notions of temporality and historicity, this article offers insights into Nehru's understanding of technological modernity, violence, socialism, the individual, the nation and the role of the state.