As the ego cogito, subjectivity is the consciousness that represents something, relates this representation back to itself, and so gathers with itself.
Martin HeideggerTime-space as commonly understood, in the sense of the distance measured between two time-points, is the result of time calculation.
Martin HeideggerWe name time when we say: every thing has its time. This means: everything which actually is, every being comes and goes at the right time and remains for a time during the time allotted to it. Every thing has its time.
Martin Heidegger