ime is an indispensable component of CH information: implementing appropriate knowledge models carry crucial importance in order to provide deeper understanding of heritage elements' evolution, to uncover concurrences, and to weigh quality factors. It is a challenging task though due to the uncertain characteristics of temporal data, and to the wording oftime in the CH discourse. Existing KR models are either not designed for these distinctive characteristics, or spatial aspects tend to upstage the temporal dimension. This research aims at deciphering and proposing a formal representation of the way temporal hints are formalized in historical narratives. An OWL ontology is introduced that provides a core support mechanism allowing for a semantic representation of temporal statements, and for structural analysis. The objective is to facilitate the cross-examination of temporal hints in and across CH collections so that specialists can have extensive reading possibilities of heritage information.