Our ability to recollect detailed events and mentally re-experience the sequence in our minds is one of the greatest mysteries of cognition. Current accounts of episodic memory vary on the role of the hippocampus in the distinct processes of construction of contextual associations (e.g., scenes) and the temporal organization (e.g., replay) of memory. To clarify the coordinating role of the hippocampus in these processes, we compared simultaneous and sequential memory retrieval using fMRI, in which participants saw a series of objects, presented individually or in pairs, and were later tested on their temporal order memory between selected pairs of objects. Both behavioral and hippocampal activation patterns revealed a dissociation between memory of sequential and simultaneous items, regardless of temporal distance. The representation of sequential memory and temporal distance was stronger in the anterior hippocampus. Distinct cortical networks were engaged during simultaneous (PFC and angular gyrus) and sequential (SMA, precuneus) memory. Importantly, the hippocampus selectively increased its connectivity with these two complementary cortical networks during the retrieval of simultaneously associated and sequential temporal relationships. These results position the hippocampus at the hub of two dissociable neurocognitive networks provides a comprehensive framework for how we reconstruct memories that are both rich in associative detail and temporally dynamic in nature.