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

(91) Do they then wait for anything other than that the angels should come to them, or that your Lord (Allah) should come, or that some of the Signs of your Lord should come (i.e. portents of the Hour e.g., rising of the sun from the west)! The day that some of the Signs of your Lord do come, no good will it do to a person to believe then, if he believed not before, nor earned good (by performing deeds of righteousness) through his Faith. Say: "Wait you! we (too) are waiting."

(92) And a great number of towns (their population) We destroyed (for their crimes). Our torment came upon them (suddenly) by night or while they were taking their midday nap.

(93) And the weighing on that day (day of Resurrection) will be the true (weighing) . So as for those whose scale (of good deeds) will be heavy, they will be the successful (by entering Paradise).

(94) (Iblis) said: "Allow me respite till the day they are raised up (i.e. the day of Resurrection)."

(95) Say (O Muhammad صلى الله عليه وسلم): My Lord has commanded justice and (said) that you should face Him only (i.e. worship none but Allah and face the Qiblah, i.e. the Ka'bah at Makkah during prayers) in every place of worship, in prayers (and not to face other false deities and idols), and invoke Him only making your religion sincere to Him (by not joining in worship any partner with Him and with the intention that you are doing your deeds for Allah's sake only). As He brought you (into being) in the beginning, so shall you be brought into being [on the day of Resurrection in two groups, one as a blessed one (believers), and the other as a wretched one (disbelievers)].

(96) Say (O Muhammad صلى الله عليه وسلم): "Who has forbidden the adornment with clothes given by Allah, which He has produced for His slaves, and At-Taiyyibat [all kinds of Halal (lawful) things] of food?" Say: "They are, in the life of this world, for those who believe, (and) exclusively for them (believers) on the day of Resurrection (the disbelievers will not share them)." Thus We explain the Ayat (Islamic laws) in detail for people who have knowledge.

(97) "Who took their religion as an amusement and play, and the life of the world deceived them." So this day We shall forget them as they forgot their meeting of this day, and as they used to reject Our Ayat (proofs, evidence, verses, lessons, signs, revelations).

(98) Await they just for the final fullfilment of the event? On the day the event is finally fulfilled (i.e. the day of Resurrection), those who neglected it before will say: "Verily, the Messengers of our Lord did come with the truth, now are there any intercessors for us that they might intercede on our behalf? Or could we be sent back (to the first life of the world) so that we might do (good) deeds other than those (evil) deeds which we used to do?" Verily, they have lost their ownselves (i.e. destroyed themselves) and that which they used to fabricate (invoking and worshipping others besides Allah) has gone away from them.

(99) Indeed your Lord is Allah, Who created the heavens and the earth in Six days, and then He rose over (Istawa) the Throne (really in a manner that suits His Majesty). He brings the night as a cover over the day, seeking it rapidly, and (He created) the sun, the moon, the stars subjected to His Command. Surely, His is the Creation and Commandment. Blessed is Allah, the Lord of the 'Alamin (mankind, jinn and all that exists)!

(100) Indeed, We sent Nuh (Noah) to his people and he said: "O my people! Worship Allah! You have no other Ilah (God) but Him. (La ilaha illallah: none has the right to be worshipped but Allah). Certainly, I fear for you the torment of a Great day!"