The paper introduces a theory of hybrid working situations and proposes a novel framework for analyzing the evolving dynamics of work in computationally intensive societies. Moving beyond a logistical perspective that emphasizes location-centric and flexible working models, we propose a situated perspective that sheds light on the everyday activities shaping contemporary work. Hybrid working situations are defined as the spatiotemporal reconfiguring emerging from the responsive fusion of screens and bodies across a new working terrain. These situations are characterized by three core features: multi-locationality, layeredness of interactions, and provisionality. To operationalize the concept of hybrid working situations, we identify three interrelated dimensions of hybridity: spatiotemporal, environmental, and responsive, which highlight the adaptive, integrative, and context-dependent nature of contemporary work. The framework offers a nuanced perspective for understanding the complexities of hybrid working by addressing overlapping interactions, shifting boundaries, and the fusion of physical and digital environments. It advances debates on critical themes such as work-life balance, technostress, and team management while shedding light on the transformative implications of work for organizing.