Anthropologists working in a culturally unfamiliar field site carry out an experiment in time by interacting with people who do not share a common cultural past with them. Their real time interaction will therefore engender miscommunications and interpretative breakdowns. The 'invisibility' of temporal patterns results from the tendency of human consciousness to focus on difference and forget repetition. This article argues that the methodological intervention of ethnographic fieldwork is to transform repetition into difference by participating in events over a period of time. Building on the premise that anthropologists and their collaborators often act from different temporal orientations or 'timescapes', the article suggests that similar differences develop within societies between actors in different life situations and representing different cultural interests and traditions. Only through the long-term study of a particular group of people can the complexity and dynamics of different timescapes be discerned.