One perspective on time.

Most people share a common perspective and understanding of time. Whether that common perspective is immutable or transient, right or wrong is not immediately relevant. What is relevant is that they share a common perspective.  The true essence of time is not as a unit of measure to distinguish but as a means of synchronization to lead toward unification.

Being late to a meeting is a useless concept. Being in the meeting is important. Framing a worldview in terms of synchronization is significantly more productive than defining everything as a comparison.