This article analyses the influence of the hermeneutics of Hans-Georg Gadamer (1900-2002) on the conceptual history of Reinhart Koselleck (1923-2006), as well as the intellectual relationship between them. In this sense, the main biographical features of both academics have been revised, and a re-examination of the ideas —of temporality and language—, that inspired and contributed to their forma- tion and works, to analyse the primordial premises of their creations, in Truth and Method, Past Future and History and Hermeneutics. Altogether, the central conceptions of both authors and their links are reflected upon, as well as the rele- vance of their contributions to historical science of the XXI century.