Joe 3:14 Multitudes, multitudes in the valley of decision: for the day of the LORD is near in the valley of decision.
Joe 3:15 The sun and the moon shall be darkened, and the stars shall withdraw their shining.
Joe 3:16 The LORD also shall roar out of Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but the LORD will be the hope of his people, and the strength of the children of Israel.
Isa 13:9 Behold, the day of the LORD cometh, cruel both with wrath and fierce anger, to lay the land desolate: and he shall destroy the sinners thereof out of it.
Isa 13:10 For the stars of heaven and the constellations thereof shall not give their light: the sun shall be darkened in his going forth, and the moon shall not cause her light to shine.
Isa 13:11 And I will punish the world for their evil, and the wicked for their iniquity; and I will cause the arrogancy of the proud to cease, and will lay low the haughtiness of the terrible.
This would be more close to the battle of Armageddon which is years away.
Joe 2:31 The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the LORD come.
Joe 2:32 And it shall come to pass, that whosoever shall call on the name of the LORD shall be delivered: for in mount Zion and in Jerusalem shall be deliverance, as the LORD hath said, and in the remnant whom the LORD shall call.
Rev 6:12 And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
Rev 6:13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.
Rev 6:14 And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places.
Rev 6:15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains;
Rev 6:16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb:
Rev 6:17 For the great day of his wrath is come; and who shall be able to stand?
I also believe that the moon turning to blood is years away, and close to the battle of Armageddon, for at the same time the sun shall withdraw her shining the same as the stars.
And will occur when the wicked shall hide themselves in the dens, and rocks of the mountains to hide from the wrath of the Lamb of God, which is not occurring now, and has not occurred yet.
Also it happens around the time that the stars fall from heaven, which must mean when the devils are cast to earth in the future, and the earth becomes the habitation of devils, and their holding cell, and they deceive all people that do not love God to follow the beast.
Which during the first three and one half years of the 7 years period, repentance, and salvation is still available to the world, but they do not turn to God at the end of that time, but still go on with their plan to believe in no personal God, but honor the God of forces, for they believe in evolution, and nothing can be taught contrary to it, and when they do not turn to God then He gives them the man of sin to rule over them, and the devils are cast to earth.
That is my interpretation, but of course I will not be hasty, but I do not believe the blood moon has occurred yet, but that it is closer to the battle of Armageddon, and the beast reigning over the nations that is still years away.
But God did say He will show signs, but I believe the moon turning to blood is years away when the world is in the 7 years period that deceives the wicked to follow the beast, and brings Israel to the truth, for at that time the sun, and moon shall not give off their light, and the stars shall withdraw their shining, which all of that has not happened at one time.