4 verses have
night
in Edition Clear Qur'an by Talal Itani / Al-Anbiyaa (The Prophets)

21:20They praise night and day, without ever tiring.

21:33It is He who created the night and the day, and the sun and the moon; each floating in an orbit.

21:42Say, “Who guards you against the Merciful by night and by day?” But they turn away from the mention of their Lord.

21:78And David and Solomon, when they gave judgment in the case of the field, when some people’s sheep wandered therein by night; and We were witnesses to their judgment.