That Day of Judgment is called:

1. Day of God

 2 Peter 3:12

As you look forward to the day of God and speed its coming. That day will bring about the destruction of the heavens by fire, and the elements will melt in the heat.

2. Day of the Lord

2 Peter 3:10

But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything in it will be laid bare.

3. Day of the Lord Jesus

1 Corinthians 5:5

Hand this man over to Satan, so that the sinful nature may be destroyed and his spirit saved on the day of the Lord.

4. Day of Christ

Philippians 2:16

as you hold out the word of life—in order that I may boast on the day of Christ that I did not run or labor for nothing.

5. That day

2 Thessalonians 1:10

On the day he comes to be glorified in his holy people and to be marveled at among all those who have believed. This includes you, because you believed our testimony to you.

6. The last day

John 12:48

There is a judge for the one who rejects me and does not accept my words; that very word which I spoke will condemn him at the last day.

7. The great day

Jude 1:6

And the angels who did not keep their positions of authority but abandoned their own home—these he has kept in darkness, bound with everlasting chains for judgment on the great Day.

8. Day of wrath and revelation of the righteous judgment of God

Romans 2:5

But because of your stubbornness and your unrepentant heart, you are storing up wrath against yourself for the day of God's wrath, when his righteous judgment will be revealed.

9. The great day of their wrath

Revelation 6:17

For the great day of their wrath has come, and who can stand?”

10. The great day of Almighty God

Revelation 16:14

They are spirits of demons performing miraculous signs, and they go out to the kings of the whole world, to gather them for the battle on the great day of God Almighty.

11. The Day of Judgment

1 John 4:17

In this way, love is made complete among us so that we will have confidence on the Day of Judgment, because in this world we are like him.