The concept of multiple universes, often referred to as the multiverse, is a speculative idea in physics and cosmology. While there are various interpretations and hypotheses regarding the multiverse, one common notion is that each universe within the multiverse could have different physical properties, laws, or configurations.
Regarding the occurrence of different years in different universes, it's important to note that the concept of "year" is a human construct based on our measurement of time, specifically the duration it takes for the Earth to orbit the Sun. In other words, a year is a unit of time that is tied to our specific planetary system.
If we consider the multiverse hypothesis, where each universe operates under potentially distinct physical laws, it's possible that the concept of a year as we understand it might not exist in the same manner across all universes. The passage of time or the measurement of durations within different universes could be fundamentally different or even non-existent.
However, it's important to emphasize that the multiverse is still a topic of scientific speculation and theoretical exploration, and we currently lack direct empirical evidence to confirm or refute its existence. The nature of other universes, including their temporal characteristics, if they exist, remains largely speculative.