The word(s) "hour" appears 53 time(s) in 48 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) And Allah's is the unseen of the heavens and the earth; and the matter of the hour is but as the twinkling of an eye or it is higher still; surely Allah has power over all things.

(12) And thus did We make (men) to get knowledge of them that they might know that Allah's promise is true and that as for the hour there is no doubt about it. When they disputed among themselves about their affair and said: Erect an edifice over them-- their Lord best knows them. Those who prevailed in their affair said: We will certainly raise a masjid over them.

(13) And I do not think the hour will come, and even if I am returned to my Lord I will most certainly find a returning place better than this.

(14) Say: As for him who remains in error, the Beneficent Allah will surely prolong his length of days, until they see what they were threatened with, either the punishment or the hour; then they shall know who is in more evil plight and weaker in forces

(15) Surely the hour is coming-- I am about to make it manifest-- so that every soul may be rewarded as it strives:

(16) Bear then patiently what they say, and glorify your Lord by the praising of Him before the rising of the sun and before its setting, and during hours of the night do also glorify (Him) and during parts of the day, that you may be well pleased

(17) (For) those who fear their Lord in secret and they are fearful of the hour.

(18) O people! guard against (the punishment from) your Lord; surely the violence of the hour is a grievous thing.

(19) And because the hour is coming, there is no doubt about it; and because Allah shall raise up those who are in the graves.

(20) And those who disbelieve shall not cease to be in doubt concerning it until the hour overtakes them suddenly, or there comes on them the chastisement of a destructive day.