Fly-in fly-out (FIFO) work camps are built and organized to ensure that long-distance rotational workers are fed, housed, and mobilized in sync with the pressing yet unpredictable rhythms of resource extraction. Positioned thus ‘betwixt and between’ the complex relations of work and life (Johnsen and Sorensen, 2015), the work camp is a generative yet hitherto neglected example of permanent liminality (Bamber et al., 2017) and its temporalities. But what does this mean for workers? If camp does the liminal work of managing the temporal challenges of the resource-based mobility regime, how do FIFO workers experience and respond to its ‘in between’ time? Drawing on rare qualitative fieldwork in Canada’s Athabasca Oil Sands, we explain the effects of camp time—disorientation, monotony, and entrapment—and examine the temporal tactics workers deploy to manage those effects, from embracing and disrupting internal camp routines to aligning and syncing with outside and future-oriented temporalities. We argue that workers becoming ‘competent liminars’ (Borg and Söderlund, 2015) of camp time is crucial to the latter’s disciplining function. Our findings call for renewed attention to how liminal places and people mediate multiple and conflicting temporalities, especially in contexts where social time is institutionally harnessed in service of production.