Occurring on Israel holy days that is..?
But I have always wondered if the prophesied red moon in late days (of men's empires) might not be like this article says has occurred in small measure, that is.. not that it has anything to do with what the Bible calls 'last days'.
http://earthsky.org/earth/red-moon-sun-wildfire-smoke-images-aug-sept-2017
But every time there's an eclipse ppl write books, etc! Of course that's no reflection upon God's prophecies. But I think it's like they focused on and lifted one verse out of the narrative so it stands alone which of course distorts the original intent and place of the verse.
It's my belief Philadelphians (u.r.) will understand some of this because of the letter.