'Day' in the Bible

I was in the Spirit [in special communication with the Holy Spirit and empowered to receive and record the revelation from Jesus Christ] on the Lord’s Day, and I heard behind me a loud voice like the sound of a trumpet,

And the four living creatures, each one of them having six wings, are full of eyes all over and within [underneath their wings]; and day and night they never stop saying,“Holy, holy, holy [is the] Lord God, the Almighty [the Omnipotent, the Ruler of all], who was and who is and who is to come [the unchanging, eternal God].”

for the great day of their wrath and vengeance and retribution has come, and who is able to [face God and] stand [before the wrath of the Lamb]?”

For this reason, they are [standing] before the throne of God; and they serve Him [in worship] day and night in His temple; and He who sits on the throne will spread His tabernacle over them and shelter and protect them [with His presence].

So the four angels, who had been prepared for the [appointed] hour and day and month and year, were released to kill a third of mankind.

Then I heard a loud voice in heaven, saying,“Now the salvation, and the power, and the kingdom (dominion, reign) of our God, and the authority of His Christ have come; for the accuser of our [believing] brothers and sisters has been thrown down [at last], he who accuses them and keeps bringing charges [of sinful behavior] against them before our God day and night.

And the smoke of their torment ascends forever and ever; and they have no rest day and night—those who worship the beast and his image, and whoever receives the mark of his name.”

for they are [actually] the spirits of demons, performing [miraculous] signs. And they go out to the kings of the entire inhabited earth, to gather them together for the war of the great day of God, the Almighty.

For this reason in a single day her plagues (afflictions, calamities) will come, pestilence and mourning and famine, and she will be burned up with fire and completely consumed; for strong and powerful is the Lord God who judges her.

And the devil who had deceived them was hurled into the lake of fire and burning brimstone (sulfur), where the beast (Antichrist) and false prophet are also; and they will be tormented day and night, forever and ever.

By day (for there will be no night there) its gates will never be closed [in fear of evil];