[Pollster1]

For example, can you shed any light on the Scripture about God shortening the days in the END TIMES? Is that days shorter than 24 hours or fewer days? I’ve been told that the Greek does not make it clear.

That is unfortunately one area in which I am clueless. I seem to have almost no insight at all into the meaning of Matthew 24, most of the Revelation, and similar passages. As for the precise words in Greek, Matthew and Mark use words that I would translate as "cut short", but I can't even guess whether they mean days under 24 hours or fewer of those days. Luke talks about signs in the sky, which makes either interpretation plausible. I just don't know. Sorry.

[Quix]

No sweat. I’ve asked a cast of dozens over the decades. NO ONE has done any better than you . . . a number of them top flight Greek Scholars, one who’s daily NT study is always in the Greek version.