The word(s) "day" appears 569 time(s) in 514 verse(s) in Quran in Abdullah Yusuf Ali translation.

(321) Say: "I would, if I disobeyed my Lord, indeed have fear of the Penalty of a Mighty day."

(322) "Serve ye what ye will besides him." Say: "Truly, those in loss are those who lose their own souls and their People on the day of Judgment: Ah! that is indeed the (real and) evident Loss!

(323) Is, then, one who has to fear the brunt of the Penalty on the day of Judgment (and receive it) on his face, (like one guarded therefrom)? It will be said to the wrong-doers: "Taste ye (the fruits of) what ye earned!"

(324) Truly thou wilt die (one day), and truly they (too) will die (one day).

(325) In the end will ye (all), on the day of Judgment, settle your disputes in the presence of your Lord.

(326) Even if the wrong-doers had all that there is on earth, and as much more, (in vain) would they offer it for ransom from the pain of the Penalty on the day of Judgment: but something will confront them from Allah, which they could never have counted upon!

(327) On the day of Judgment wilt thou see those who told lies against Allah;- their faces will be turned black; Is there not in Hell an abode for the Haughty?

(328) No just estimate have they made of Allah, such as is due to Him: On the day of Judgment the whole of the earth will be but His handful, and the heavens will be rolled up in His right hand: Glory to Him! High is He above the Partners they attribute to Him!

(329) The Unbelievers will be led to Hell in crowd: until, when they arrive, there, its gates will be opened. And its keepers will say, "Did not messengers come to you from among yourselves, rehearsing to you the Signs of your Lord, and warning you of the Meeting of This day of yours?" The answer will be: "True: but the Decree of Punishment has been proved true against the Unbelievers!"

(330) "And preserve them from (all) ills; and any whom Thou dost preserve from ills that day,- on them wilt Thou have bestowed Mercy indeed: and that will be truly (for them) the highest Achievement".