Hover over the date text ("2 years ago" or "1 month ago"), that's to the right of the "Give Lingot" text. That text is actually a link you can use to directly link to a comment and the rollover text gives you the exact date.
For instance, the link to your comment is:
And the rollover text says "October 15, 2020".
I can't hover over anything in the app, and in any event, the only options it gives for comments are upvote, downvote, and Reply. No "Give Lingot," no "Report," and no "7 minutes ago." As I said in my previous comment, seeing how long ago a comment was left isn't a problem as long as I'm viewing it in the web browser (where I can hover) and not in the app.
I didn't know about the rollover thing, though. Im not sure when or how it will come in handy, but it's interesting to know.