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

(191) The day when the Trumpet will be sounded: that day, We shall gather the sinful, blear-eyed (with terror).

(192) In whispers will they consult each other: "Yet tarried not longer than ten (days);

(193) We know best what they will say, when their leader most eminent in conduct will say: "Ye tarried not longer than a day!"

(194) On that day will they follow the Caller (straight): no crookedness (can they show) him: all sounds shall humble themselves in the Presence of (Allah) Most Gracious: nothing shalt thou hear but the tramp of their feet (as they march).

(195) On that day shall no intercession avail except for those for whom permission has been granted by (Allah) Most Gracious and whose word is acceptable to Him.

(196) "But whosoever turns away from My Message, verily for him is a life narrowed down, and We shall raise him up blind on the day of Judgment."

(197) (Allah) will say: "Thus didst Thou, when Our Signs came unto thee, disregard them: so wilt thou, this day, be disregarded."

(198) Therefore be patient with what they say, and celebrate (constantly) the praises of thy Lord, before the rising of the sun, and before its setting; yea, celebrate them for part of the hours of the night, and at the sides of the day: that thou mayest have (spiritual) joy.

(199) They celebrate His praises night and day, nor do they ever flag or intermit.

(200) It is He Who created the Night and the day, and the sun and the moon: all (the celestial bodies) swim along, each in its rounded course.