The concept of time in a multiverse where each universe has different laws of physics is a topic that is highly speculative and not yet fully understood. Different theories and interpretations propose different explanations for how time might operate in such a scenario. Here are a few perspectives:
Time as a Universal Constant: One perspective is that time is a universal constant that remains consistent across all universes within the multiverse. While the specific laws of physics may vary between universes, time would still be a fundamental dimension that operates similarly in all of them.
Localized Time within Universes: Another viewpoint suggests that time is localized within each universe. According to this perspective, the laws of physics, including the nature of time, may differ from one universe to another. Each universe would have its own concept and flow of time.
Time as an Emergent Property: Some theories propose that time itself may emerge from more fundamental aspects of reality. In this view, the laws of physics within each universe shape the properties of time that emerge within that universe. Each universe's laws of physics would define the nature of time experienced within it.
It's important to note that the nature of time in a multiverse is still an open question in theoretical physics, and scientists are actively exploring these ideas. As our understanding of the multiverse and its implications develops, we may gain new insights into the nature of time within such a framework.