In this paper, I propose that time representation should be classified as agent dependent motor-intentional, agent dependent conceptual and agent independent conceptual. I employ this classification to explain certain features of psychological and cultural time and discuss how biological time constrains such features. The paper argues that motor-intentional time is a crucial psychophysical link that bridges the gap between purely biochemical cycles and conceptual-intentional representations of time, and proposes that the best way to understand the transitions from biological to psychological (...) time is to characterize them as phase transitions that emerge on the global properties of a system regardless of specific aspects of the underlying processing units. With respect to hierarchical models of time, the paper claims that although the hierarchical organization of constraints limits the number of possible instantiations of temporal information, informational phases have principles of organization of their own. Based on these proposals, I conclude that since information assembles itself into the temporal behavior of an agent, it is more accurate to call the principles governing such a behavioral unity a phase, rather than a hierarchy. To support these theses, the paper draws upon research in biology, neuroscience, philosophy and psychology. (shrink)