Observing the increasing, yet still partial exploration of pluralism, complexity and multiplicity in recent Labour party historiography, this article pursues a pluralist approach to Labour on two central, related themes of its middle-century evolution. First, it probes the plurality of Labour's different conceptions of time, specifically how it lived with the ambiguity of simultaneously viewing social progress as both immediate and rapidly achievable, yet also long term and strewn with constraints. This co-existence of multiple time-frames highlights the party's uncertainty and ideological multi-dimensionality, especially in its focus both on relatively rapid economic or structural transformation, and on much more slow-moving cultural, ethical, and educational change. It also complicates neat characterizations of particular phases in the party's history, challenging straightforwardly declinist views of the post-1945–51 period. Secondly, time connects to Labour's view of the people. Whilst historians have debated between positive and negative perceptions of the people, here the plural, split mind of Labour about the progressive potential of the citizenry is stressed, one closely intertwined with its multiple outlook on how long socialism would take. Contrasts are also suggested between the time-frames and expectations under which Labour and the Conservatives operated.