In Taiji philosophy, time is viewed as a cyclical and ever-changing concept rather than a linear and fixed one. This perspective is deeply rooted in the Taoist-Confucian cosmology, which sees the universe as a constantly evolving and interconnected system.

At the core of Taiji philosophy is the concept of Taiji, which translates to "Supreme Ultimate" or "Great Ultimate". This symbol represents the balance and harmony between the two opposing forces of Yin and Yang, which are seen as the fundamental elements of the universe. These forces are in a constant state of flux, with Yin representing the feminine, passive, and dark aspects, while Yang represents the masculine, active, and light aspects.

According to Taiji philosophy, time is seen as a continuous cycle of these opposing forces, constantly transforming and balancing each other. This cyclical nature of time is reflected in the symbol of Taiji, which is depicted as a circle divided into two halves, representing the endless cycle of Yin and Yang.

Furthermore, Taiji philosophy also emphasizes the concept of Wuji, which represents the state of nothingness or emptiness that precedes the emergence of Taiji. This state of Wuji is often associated with the concept of timelessness, as it exists beyond the realm of time and space.

In contrast to the Western concept of time as a linear progression, Taiji philosophy sees time as a spiral, with each revolution bringing about new changes and transformations. This cyclical view of time also aligns with the Taoist belief in the natural flow of the universe, where everything is in a constant state of change and renewal.

Moreover, the concept of Taiji also stresses the importance of balance and harmony in the present moment. The past and future are seen as secondary to the present, and the focus is on living in the here and now. This idea is reflected in the Taoist saying, "The past is already gone, and the future is yet to come. The present is all we have."

In conclusion, Taiji philosophy views time as a cyclical and ever-changing concept, deeply intertwined with the balance and harmony of Yin and Yang. It emphasizes the importance of living in the present and understanding the natural flow of the universe, rather than being fixated on a linear understanding of time.