Husserl's analysis of inner time consciousness belongs among classic topics of modern philosophy as it is rich in insights and proved to be highly influential for the develop-ment of the phenomenology of time. This fact has been appropriately reflected in the scholarly literature on the topic.
It is therefore surprising that the account of the early development of Husserl's thinking about time is not faithful to the actual texts published by him. A closer look at works published by Husserl suggests that he initially used the theory of time consciousness of his teacher Brentano in his first book Philosophy of Arithmetics (Philosophie der Arithmetik,1891) to refute time based accounts of constitution of multiplicities (also called "sets" or "totalities") and that somewhat later, he tried to improve on it by introducing the concept of representation in his second psychological work "Psychological Studies in the Elements of Logic" ("Psychologische Studien zur elementaren Logik", 1894).
This step opens up a possibility of an analysis of inner time consciousness and allows for differentiation between the retentional unity of time intuition on the one side and perceptional presence of a freshly passed perception of time objects on the other.