Despite long-standing recognition that variations exist between people's experiences of time, and that time is central to the framing of social life and bureaucratic systems, migration scholars have tended to neglect the temporal dimension in their exploration of mobility. This continues to be the case today despite it being over a decade since Saulo Cwerner, in this journal, called for migration researchers to give greater attention to time. This article seeks to reinvigorate the debate, drawing on ethnographic research with refused asylum seekers and immigration detainees in the UK to question how an appreciation of time provides insights into understandings of mobility and deportability. It argues that deportable migrants suffer from the instability and precarity created by living with a dual uncertainty of time, one that simultaneously threatens imminent and absent change. The article distinguishes between four experiential temporalities (sticky, suspended, frenzied and ruptured), and considers how the re-appropriation of time might aid individual resilience.Immigration detainees and refused asylum seekers are subject to multiple temporal tensions. In part these relate to cultural diversity, which is associated with variations in conceptualisations of time (Adam 1994a;Fabian 1983;Gell 1992;Marcus 1984). To a large extent, however, they arise from specific characteristics of the asylum and detention systems, including certain administrative procedures, chronic uncertainty and the systemic primacy of waiting. Although the relationship between time and space has been examined by philosophers and geographers for several decades