Not sure why you are being downvoted for this, it's very helpful. We should draw a distinction between relative and subjective. A measurement of time only makes

Not sure why you are being downvoted for this, it's very helpful. We should draw a distinction between relative and subjective. A measurement of time only makes sense relative to a given reference frame, but that doesn't mean that time measurement is subjective (i.e. depending on a subject's opinion, or only true from the perspective of a conscious subject). "X time passed in reference frame Y" is an objective fact in relativity. It may be helpful to think about a more mundane example. The results Google returns for a given search term depend on who searches, which makes them relative. But they don't depend on the feelings of the searcher and hence are objective, not subjective.