[FR] Show ETA clock, not offset

[KronosTheLate]

Currently, the ETA of a loop is shown as an offset from print-time, or the estimated remaining time during printing. If I do not look at my screen during printing, but come back at a later time, I do not know when the message was printed, reducing it's utility. I found myself printing the clock at the end of each cycle.

Could an option be added to allow showing the ETA clock, and not offset?

I even think it would be superior, and therefore a reasonable default. But that is of course very much up for discussion.