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

(201) Say: "Who can keep you safe by night and by day from (the Wrath of) (Allah) Most Gracious?" Yet they turn away from the mention of their Lord.

(202) We shall set up scales of justice for the day of Judgment, so that not a soul will be dealt with unjustly in the least, and if there be (no more than) the weight of a mustard seed, We will bring it (to account): and enough are We to take account.

(203) The Great Terror will bring them no grief: but the angels will meet them (with mutual greetings): "This is your day,- (the day) that ye were promised."

(204) The day that We roll up the heavens like a scroll rolled up for books (completed),- even as We produced the first creation, so shall We produce a new one: a promise We have undertaken: truly shall We fulfil it.

(205) The day ye shall see it, every mother giving suck shall forget her suckling-babe, and every pregnant female shall drop her load (unformed): thou shalt see mankind as in a drunken riot, yet not drunk: but dreadful will be the Wrath of Allah.

(206) (Disdainfully) bending his side, in order to lead (men) astray from the Path of Allah: for him there is disgrace in this life, and on the day of Judgment We shall make him taste the Penalty of burning (Fire).

(207) Those who believe (in the Qur'an), those who follow the Jewish (scriptures), and the Sabians, Christians, Magians, and Polytheists,- Allah will judge between them on the day of Judgment: for Allah is witness of all things.

(208) "That they may witness the benefits (provided) for them, and celebrate the name of Allah, through the days appointed, over the cattle which He has provided for them (for sacrifice): then eat ye thereof and feed the distressed ones in want.

(209) Yet they ask thee to hasten on the Punishment! But Allah will not fail in His Promise. Verily a day in the sight of thy Lord is like a thousand years of your reckoning.

(210) Those who reject Faith will not cease to be in doubt concerning (Revelation) until the Hour (of Judgment) comes suddenly upon them, or there comes to them the Penalty of a day of Disaster.