This study delves into the concept of time and space in dystopian novels, focusing on Turkish and American works from 1950 to the present. The examination is rooted in the controversial ideas of postmodern space and time concerning modernism and postmodernity. Notably, since the 1990s, fragmentation, discontinuity, and eclecticism have increasingly permeated fictional narratives, mirroring the evolving perception of space and time in literature. The study's primary goal is to unveil how these modern and postmodern concepts are reflected in American dystopian novels, which fall under the science fiction genre, within David Harvey's theory of space. The study aims to reveal how the transformation in the experience of space is reflected in the works based on David Harvey's perception of postmodern space and time and its manifestations in dystopian novels. Within this framework, in the theoretical chapters, in addition to Harvey's approach, the views of theorists who address modernity, postmodernity, and the concept of modern and postmodern spacetime are also utilized. Based on the disappearance of physical borders due to technological developments and the phenomenon of globalization, the inability to strictly define spaces, and the flexible and eclectic structure of selves and cultural forms, it will be tried to reveal how dystopian novels, which generally offer a complex and invaluable material in terms of spatial texture, reflect the concerns associated with such a transformation. The mass migrations and wars that emerged due to the political and cultural revolutions that developed with the Moderation in the West transformed the perception of conventional space. With the dissolution of empires and the rise of nation-states, geographical borders began to disappear, and individuals began to move away from the traditional point of view and break away from their roots; accordingly, the values and images changed their meaning, the powers constructed themselves through space, and the compression of time and space, which made itself felt with the acceleration of impermanence and time, manifested itself in literature as in every field of life. The reflections of these transformations have emerged in dystopian novels through particular visions describing a more chaotic world. In the sample selection, Turkish and American dystopian novels written after 1950 were considered among dystopian works and categorized as science fiction. At this point, the topicality of the works and the fact that they have not been subject to many analyses regarding the space-time-identity relationship have been decisive. The fact that the novels in question are still current and widely read gains importance in connection with the ecological problems that started to attract more and more attention in the 2000s, the questioning of globalization as a result of the severity of economic crises affecting many geographies, the visibility of decentralized resistances, the use of technology for control by power mechanisms and the increase in disaster scenarios developed in connection with all these. The increase in individual mobility and the fluidity of images gains importance in the context of traditional forms of representation and a strictly definable understanding of space and time. Since dystopian novels can be a narrative in which many genres and categories are involved and intersect, dystopian novels bring together different forms of representation in terms of the theory of time and space and, therefore, images from various periods and geographies. For this reason, dystopian works offer an extensive range of material for analysis. In this context, it will be tried to reveal whether the spatial relations in the novels to be analyzed are characterized by the kind of fragmentation and crisis of representation mentioned by Harvey and the theorists who approach the phenomenon of postmodernity and whether a uniformity of values and social bonds are visible at the level of space and time. Within this framework, the question of whether postmodernity's defining features, such as conflict and chaos, heterogeneous structure, schizophrenia, discontinuity, fluidity, decentralization, reproduction, imitation, nostalgia, and multivalence, are reflected in the works will be sought. Based on these questions, it will be evaluated whether the relationship between space and time in novels deserves the title of modern or postmodern, whether the cultural experience called postmodern can be directly distinguished on the visual plane, whether it is dominant, and what kind of concerns it reflects.