The concept of time is a fundamental part of our understanding of the universe and is often used to describe changes and events that occur. However, whether time has dimension or not is a matter of interpretation.
One way to approach this question is to consider the units of measurement used to quantify time. In the International System of Units (SI), time is measured in seconds, which is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom. The fact that time is measured in units of seconds suggests that it has dimension, as it is being quantified in a specific way.
Another way to approach this question is to consider the physical phenomena that time is associated with. Time is intimately tied to the concept of motion, and motion is typically described in terms of distance and time. For example, the velocity of an object is defined as the change in distance over the change in time. The fact that time is a necessary component in describing motion suggests that it has dimension.
Furthermore, the theory of relativity, which is a well-established and empirically verified theory in physics, treats time as a fourth dimension, in addition to the three dimensions of space. In this theory, space and time are considered to be intimately linked, forming a four-dimensional spacetime. This theoretical framework suggests that time has dimension and is a fundamental component of our understanding of the universe.
Therefore, while the concept of time may be difficult to fully grasp and understand, it is generally accepted in the scientific community that time has dimension and is a necessary component of our understanding of the universe.