Matthew 27:45
From the sixth hour there was darkness over all the land till the ninth hour.
Mark 15:33-34
And when the sixth hour had come, there was darkness over the whole land, till the ninth hour.
Luke 23:44-45
And it was about the sixth hour, and there was darkness over the whole land till the ninth hour.
Mark 15:25
And it was the third hour, and they crucified him.
Revelation 8:12
And the fourth angel sounded; and the third part of the sun, and the third part of the moon, and the third part of the stars was smitten, that the third part might be darkened, and that the day might not shine for the third part of it, and the night in like manner.
Revelation 9:2
and he opened the pit of the abyss; and there arose a smoke out of the pit, like the smoke of a great furnace; and the sun and the air were darkened by the smoke of the pit.