Time, as we understand it, is not composed of particles. It is a fundamental concept that helps us measure and understand the sequence of events and the progression of physical systems. In our current understanding of physics, time is considered one of the four dimensions of spacetime, along with three spatial dimensions.
Particles, on the other hand, are entities that can be described within the framework of quantum mechanics. Elementary particles, such as electrons, quarks, and photons, are the building blocks of matter and energy in the universe. They are described by wavefunctions that evolve over time according to the laws of quantum mechanics.
While particles exist and interact within the framework of spacetime, time itself is not considered a particle. Instead, it is a fundamental aspect of the fabric of the universe that allows for the ordering and measurement of events.
It's important to note that our understanding of the fundamental nature of time and its relationship with quantum mechanics and spacetime is an active area of research in theoretical physics. Scientists continue to explore various theories, such as quantum gravity and the nature of time at the quantum level, in order to deepen our understanding of these concepts.