Approaching one second per second, is that so much to ask?

Unless standardization has improved, how+when the second is smeared(if at all) means timestamps from the same system aren't usefully subtractable without communicating a separate time skew calendar.

That said, time is a big topic, and everything has different requirements but migrating to TAI and treating UTC as yet another human readable time zone has solved more (admittedly application specific) problems than it created.