Revelation 8:12

Then the fourth angel sounded his trumpet, and a third of the sun and moon and stars were struck. A third of the stars were darkened, a third of the day was without light, and a third of the night as well.
BSB · Berean Standard Bible
And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; so as the third part of them was darkened, and the day shone not for a third part of it, and the night likewise.
KJV · King James Version
The fourth angel sounded, and one third of the sun was struck, and one third of the moon, and one third of the stars, so that one third of them would be darkened; and the day wouldn’t shine for one third of it, and the night in the same way.
WEB · World English Bible
And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; that the third part of them should be darkened, and the day should not shine for the third part of it, and the night in like manner.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

and the third part of the sun
Revelation 16:8, 9; Isaiah 13:10; Isaiah 24:23; Jeremiah 4:23; Ezekiel 32:7, 8; Joel 2:10, 31; Amos 8:9; Matthew 24:29; Matthew 27:45; Mark 13:24; Mark 15:33; Luke 21:25; Luke 23:44, 45; Acts 2:20
and the day
Exodus 10:21–23; 2 Corinthians 4:4; 2 Thessalonians 2:9–12