In this article I intend to work on the presence of the concept of "absolute historicism" in Gramsci’s Prison Notebooks, and on the criticism that Althusser conferred on it. I affirm that the notion of "absolute historicism" allows us to thematize the problem of history and time in both authors, and I will try to show that it is precisely in this terrain that it is possible to trace ways today for the reunion between Gramsci and Althusser based on recognition that the one and the other have developed - in their own way - models of plural temporality.