The word(s) "day" appears 533 time(s) in 482 verse(s) in Quran in Muhammad Habib Shakir translation.

(191) And He it is Who created the night and the day and the sun and the moon; all (orbs) travel along swiftly in their celestial spheres.

(192) Say: Who guards you by night and by day from the Beneficent Allah? Nay, they turn aside at the mention of their Lord.

(193) And We will set up a just balance on the day of resurrection, so no soul shall be dealt with unjustly in the least; and though there be the weight of a grain of mustard seed, (yet) will We bring it, and sufficient are We to take account.

(194) The great fearful event shall not grieve them, and the angels shall meet them: This is your day which you were promised.

(195) On the day when We will roll up heaven like the rolling up of the scroll for writings, as We originated the first creation, (so) We shall reproduce it; a promise (binding on Us); surely We will bring it about.

(196) On the day when you shall see it, every woman giving suck shall quit in confusion what she suckled, and every pregnant woman shall lay down her burden, and you shall see men intoxicated, and they shall not be intoxicated but the chastisement of Allah will be severe.

(197) Turning away haughtily that he may lead (others) astray from the way of Allah; for him is disgrace in this world, and on the day of resurrection We will make him taste the punishment of burning:

(198) Surely those who believe and those who are Jews and the Sabeans and the Christians and the Magians and those who associate (others with Allah)-- surely Allah will decide between them on the day of resurrection; surely Allah is a witness over all things.

(199) That they may witness advantages for them and mention the name of Allah during stated days over what He has given them of the cattle quadrupeds, then eat of them and feed the distressed one, the needy.

(200) And they ask you to hasten on the punishment, and Allah will by no means fail in His promise, and surely a day with your Lord is as a thousand years of what you number.