6 verses have
day
in Edition Clear Qur'an by Talal Itani / Al-Kahf (The Cave)

18:19Even so, We awakened them, so that they may ask one another. A speaker among them said, “How long have you stayed?” They said, “We have stayed a day, or part of a day.” They said, “Your Lord knows best how long you have stayed.” “Send one of you to the city, with this money of yours, and let him see which food is most suitable, and let him bring you some provision thereof. And let him be gentle, and let no one become aware of you.”

18:47On the Day when We set the mountains in motion; and you see the earth emerging; and We gather them together, and leave none of them behind.

18:52On the Day when He will say, “Call on My partners whom you have claimed.” They will call on them, but they will not answer them. And We will place between them a barrier.

18:99On that Day, We will leave them surging upon one another. And the Trumpet will be blown, and We will gather them together.

18:100On that Day, We will present the disbelievers to Hell, all displayed.

18:105It is they who rejected the communications of their Lord, and the encounter with Him. So their works are in vain. And on the Day of Resurrection, We will consider them of no weight.