The word(s) "day" appears 704 time(s) in 579 verse(s) in Quran in Mohsin Khan translation.

(161) And He has made the sun and the moon, both constantly pursuing their courses, to be of service to you; and He has made the night and the day, to be of service to you.

(162) "Our Lord! Forgive me and my parents, and (all) the believers on the day when the reckoning will be established."

(163) Consider not that Allah is unaware of that which the Zalimun (polytheists, wrong-doers) do, but He gives them respite up to a day when the eyes will stare in horror.

(164) And warn (O Muhammad صلى الله عليه و سلم) mankind of the day when the torment will come unto them; then the wrong-doers will say: "Our Lord! Respite us for a little while, we will answer Your Call and follow the Messengers!" (It will be said): "Had you not sworn aforetime that you would not leave (the world for the Hereafter).

(165) On the day when the earth will be changed to another earth and so will be the heavens, and they (all creatures) will appear before Allah, the One, the Irresistible.

(166) And you will see the Mujrimun (criminals, disbelievers in the Oneness of Allah - Islamic Monotheism, polytheists) that day Muqarranun (bound together) in fetters.

(167) How much would those who disbelieved wish that they had been Muslims [those who have submitted themselves to Allah's Will in Islam i.e. Islamic Monotheism - this will be on the day of Resurrection when they will see the disbelievers going to Hell and the Muslims going to Paradise].

(168) And even if We opened to them a gate from the heaven and they were to keep on ascending thereto (all the day long)

(169) "And verily, the curse shall be upon you till the day of Recompense (i.e. the day of Resurrection)."

(170) [Iblis (Satan)] said: "O my Lord! Give me then respite till the day they (the dead) will be resurrected."