Abstract
Geologic time is an essential dimension in geological research, acting as a pivotal attribute that integrates data across various subdisciplines. The Geologic Time Scale (GTS) provides a formal framework for interpreting and communicating geologic time within the field of geological studies, such as macro-geological evolution and regional geologic surveys. This paper reviews the historical development of the GTS and highlights its present challenges for geodata sharing, including issues of dynamism, heterogeneity, and temporality. We advocate for the use of knowledge graphs to enhance the GTS by improving data representation, machine-readability, and sharing of geologic time information. Furthermore, we offer preliminary suggestions for the stepwise enhancement of the GTS Knowledge Graph, aiming to meet the evolving needs of the GTS for Earth and other celestial bodies within our solar system.