It’s not useful to have the history record for records display in ‘days ago’ or ‘months ago’.
Much more useful to display the actual date.
Rationale is that when looking at history, its very likely you’ll be auditing or reconciling events on that record, so seeing that a record change happened ‘3 months ago’ is not at all useful.
I’ve discovered through this forum (thanks @ScottWorld !) that you can hover to see the detail, but why force users to d that? Much better to show actual date, potentially useful to hover to reveal time which can sometimes also be useful.