The word(s) "days" appears 39 time(s) in 35 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) Allah will not call you to account for what is futile in your oaths, but He will call you to account for your deliberate oaths: for expiation, feed ten indigent persons, on a scale of the average for the food of your families; or clothe them; or give a slave his freedom. If that is beyond your means, fast for three days. That is the expiation for the oaths ye have sworn. But keep to your oaths. Thus doth Allah make clear to you His signs, that ye may be grateful.

(12) Your Guardian-Lord is Allah, Who created the heavens and the earth in six days, and is firmly established on the throne (of authority): He draweth the night as a veil o'er the day, each seeking the other in rapid succession: He created the sun, the moon, and the stars, (all) governed by laws under His command. Is it not His to create and to govern? Blessed be Allah, the Cherisher and Sustainer of the worlds!

(13) Verily your Lord is Allah, who created the heavens and the earth in six days, and is firmly established on the throne (of authority), regulating and governing all things. No intercessor (can plead with Him) except after His leave (hath been obtained). This is Allah your Lord; Him therefore serve ye: will ye not receive admonition?

(14) Do they then expect (any thing) but (what happened in) the days of the men who passed away before them? Say: "Wait ye then: for I, too, will wait with you."

(15) He it is Who created the heavens and the earth in six days - and His Throne was over the waters - that He might try you, which of you is best in conduct. But if thou wert to say to them, "Ye shall indeed be raised up after death", the Unbelievers would be sure to say, "This is nothing but obvious sorcery!"

(16) But they did ham-string her. So he said: "Enjoy yourselves in your homes for three days: (Then will be your ruin): (Behold) there a promise not to be belied!"

(17) We sent Moses with Our signs (and the command). "Bring out thy people from the depths of darkness into light, and teach them to remember the days of Allah." Verily in this there are Signs for such as are firmly patient and constant,- grateful and appreciative.

(18) So make no haste against them, for We but count out to them a (limited) number (of days).

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

(20) "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.