'Day' in the Bible

I was in the Spirit 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 around and within; and day and night they do not cease to say,“Holy, holy, holy is the Lord God, the Almighty, who was and who is and who is to come.”

for the great day of their wrath has come, and who is able to stand?”

For this reason, they are before the throne of God; and they serve Him day and night in His temple; and He who sits on the throne will spread His tabernacle over them.

The fourth angel sounded, and a third of the sun and a third of the moon and a third of the stars were struck, so that a third of them would be darkened and the day would not shine for a third of it, and the night in the same way.

And the four angels, who had been prepared for the hour and day and month and year, were released, so that they would kill a third of mankind.

Then I heard a loud voice in heaven, saying,“Now the salvation, and the power, and the kingdom of our God and the authority of His Christ have come, for the accuser of our brethren has been thrown down, he who accuses them before our God day and night.

And the smoke of their torment goes up forever and ever; 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 spirits of demons, performing signs, which go out to the kings of the whole world, to gather them together for the war of the great day of God, the Almighty.

For this reason in one day her plagues will come, pestilence and mourning and famine, and she will be burned up with fire; for the Lord God who judges her is strong.

And the devil who deceived them was thrown into the lake of fire and brimstone, where the beast and the false prophet are also; and they will be tormented day and night forever and ever.