'Day time' in the Bible

[When] the fourth angel sounded its trumpet [I saw] one third of the sun, one third of the moon, and one third of the stars being struck, so that one third [of their light] would become darkened. So, the daytime had [only] one third of its [normal] light, and the nighttime was the same way.

And the gates of the city will never be closed during the daytime (for there will never be nighttime there).