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

(151) And perform As-Salat (Iqamat-as-Salat ), at the two ends of the day and in some hours of the night [i.e. the five compulsory Salat (prayers)]. Verily, the good deeds remove the evil deeds (i.e. small sins). That is a reminder (an advice) for the mindful (those who accept advice).

(152) So, when they took him away and they all agreed to throw him down to the bottom of the well, (they did so) and We revealed to him: "Indeed, you shall (one day) inform them of this their affair, when they know (you) not."

(153) And the king said: "Bring him to me that I may attach him to my person." Then, when he spoke to him, he said: "Verily, this day, you are with us high in rank and fully trusted."

(154) He said: "No reproach on you this day; may Allah forgive you, and He is the Most Merciful of those who show mercy!

(155) And it is He Who spread out the earth, and placed therein firm mountains and rivers and of every kind of fruits He made Zawjain Ithnain (two in pairs - may mean two kinds or it may mean: of two varieties, e.g. black and white, sweet and sour, small and big). He brings the night as a cover over the day. Verily, in these things, there are Ayat (proofs, evidence, lessons, signs, etc.) for people who reflect.

(156) It is the same (to Him) whether any of you conceal his speech or declares it openly, whether he be hid by night or goes forth freely by day.

(157) "And indeed, We shall make you dwell in the land after them. This is for him who fears standing before Me (on the day of Resurrection or fears My punishment) and also fears My threat."

(158) The parable of those who disbelieved in their Lord is that their works are as ashes, on which the wind blows furiously on a stormy day; they shall not be able to get aught of what they have earned. That is the straying, far away (from the Right Path).

(159) And they all shall appear before Allah (on the day of Resurrection); then the weak will say to those who were arrogant (chiefs): "Verily, we were following you; can you avail us anything against Allah's Torment?" They will say: "Had Allah guided us, we would have guided you. It makes no difference to us (now) whether we rage, or bear (these torments) with patience; there is no place of refuge for us."

(160) Say (O Muhammad صلى الله عليه و سلم) to 'Ibadi (My slaves) who have believed, that they should perform As-Salat (Iqamat-as-Salat ), and spend in charity out of the sustenance We have given them, secretly and openly, before the coming of a day on which there will be neither mutual bargaining nor befriending.