1:1: The vision concerns "things which are now to take place very soon" (not over two thousand years later).
1:3: The book would make "the man who reads this prophecy" (i.e. the person reading it at the time it was written) very happy "because the time is close".
1:7: The very people who put Jesus to death are prophesied as witnessing his return on the clouds of heaven (compare the similar statements in the synoptic gospels, cf. Mark 8:38-9:1, 13:29-30, 14:62)
2:5: The Christians living in Ephesus are warned that if they do not shape up by the time Jesus comes to them, he will cast judgment on this particular church.
2:15-16: The Christians living in Pergamum who accept the teachings of the Nicolaitans are told that Jesus "shall soon come to you" and if they have not repented, Jesus will attack them "with the sword out my mouth".
2:20-23: The Christians living in Thyatira are told that Jesus will soon kill the false prophetess Jezebel and all her followers.
3:3-5: The Christians living in Sardis are told that if they do not repent, Jesus will come to them like a thief.
3:9-11: The Christians living in Philadelphia are told that that Jesus is "coming soon" and if they are faithful, Jesus will "keep them from the time of trial which will come to the whole world to test the people of the world".
3:20: Jesus' coming is so close that he tells the Christians living in Laodicea that "I am standing at the door knocking".
6:9-11: The Christians who had died in persecution prior to the writing of Revelation are told to wait just "a little longer" before the full number of Christians are martyred (see ch. 13-14).
12:12: The Devil, having been cast to earth (see 2:13 which has the Devil already enthroned on earth in the city of Pergamum), knows that "his time is short".
17:10-12: Of the seven kings of the "great city which has (present tense) over all the rulers of the earth" (v. 18), i.e. Rome, five have already fallen at the time of writing, one is on the throne, while the last king "must remain only a short while". Thus only a brief reign separates the current emperor from the Beast responsible for destroying the city. And when the Beast (who is one of the prior kings, i.e. Nero) reigns as the eighth king, he is accompanied by ten foreign kings who will have authority "only for a single hour".
22:6-7: Jesus through his angel promises the author that his vision concerns "things that must soon take place" and he declares: "Look, I am coming soon!".
22:10: The author is instructed to "not seal up the words of the prophecy of this scroll, because the time is near". This is a reversal of the sealing motif in the book of Daniel, which has the angel instructing Daniel to seal up his book until the time of "end" (12:4; the time when the book of Daniel was first circulated, i.e. the time of the Maccabean crisis, cf. 11:35, 40), which is an internal plot device to explain why no one had seen this book until the time of Antiochus Epiphanes; the book had supposedly been sealed up for generations until the time came for the book to be unsealed and circulated. In contrast to this, John is told that his book must not be sealed up for a later generation but circulated immediately, as the time is the close and the message was intended for those in the Asian churches (ch. 2-3) who needed to hear what the prophecy has to say.
22:20: Jesus repeats his promise that "I am coming soon", which is the note the book ends with.