I just don't see what the point is of making the version the date. If I care about time then look up the release date metadata associated with the version.

Semver shows breaking changes. That seems more important than time to me, and I'd think for most people. Calver implies to me that people are manually reviewing releases and going "yeah this date is more recent so I think I'll go with that one" which makes no sense to me. Basically everyone has some automated update system.

What does matter to me is if an update with break anything or includes new features.