An attempt is made to critically review temporal concepts as used in psychological literature. Diversity of them is indicated as well as some inconsistencies in their use. The data presented by the authors obtained in a genetical study of the problem of time proves to a certain extent correctness of regarding the process of perception of time from the structural-hierarchical point of view. This approach, first, makes it possible to overcome some difficulties connected with application of temporal concepts and, second, may contribute to solution of more general problems in the psychology of time.