This chapter introduces some theorizing about the temporal dimension of the dialogical self that is often ignored because of the usual focus on space rather than time. It provides a developmental and life historical account of how time enters into the psychology of a person with respect to different aspects of self. The chapter focuses on how the three-dimensional model of selves emerges in early development and transforms throughout the lifetime of the individual. Early in the development of the dialogical self, the focus is on spatial relations of I-positions, where each primary I-position represents a particular sense of self, with its own action orientation and voice. The chapter considers a case study in which the temporal organization of the dialogical self becomes especially apparent through dissociation of phenomenal mental selves, each with their own temporally integrated narrative meta-structure and with changing dialogical relations to other mental selves.