The Whole Set of Events
The woes are the whole set of events brought about (or contained within) the last three trumpet blasts (Rev 8:13). The first two woes clarify this:
- 1st Woe (5th Trumpet)
- The trumpet sounds (Rev 9:1a)
- The woeful events occur: star fall, bottomless pit opened, locusts from pit torment men 5-months (Rev 9:1b-9:11)
- The woe is past (Rev 9:12)
- 2nd Woe (6th Trumpet)
- The trumpet sounds (Rev 9:13a)
- The woeful events occur:
- release of angels and army whose power kills 1/3 of all people (9:13b-19),
- the other 2/3 of people do not repent of sin (9:20-21)
- seven thunders effect sealed (10:1-4)
- announcement the end is near (10:5-7)
- the bitter book (10:8-11)
- the treading of the holy city 42 months and two witnesses testimony (11:1-6)
- the death of the witnesses (11:7-10)
- the resurrection of the witnesses, accompanied by judgment—1/10th of city, 7,000 die in earthquake (11:11-13)
- The woe is past (11:14)
Notice how there is an enlarging series of events from the 1st to the 2nd Woe. The things done in the 2nd are far more than the 1st. The woe is not "past" until all the events are done that were heralded by that trumpet blast.
Now there is no direct mention of the 3rd Woe being "past," hence your question. But every Woe is over when the events from its blast are completed. And there is a clue given regarding when the 7th Trumpet would be completed. The time would be over "in the days of the sounding of the seventh angel, when he is about to sound even the mystery of God be finished" (Rev 7:7a). NOTE: (a) the verse indicates the blast lasts multiple days and (b) the end is when the mystery is finished.
"The mystery of God" is a broad statement. But in context, it relates to completing the secret God is unveiling in The Book of Revelation—His bodily return. It also involves the other mysteries related to all this. Which means "the mystery of the woman" (Rev 17:7) is part of it, which relates to Babylon (17:5, 18) and the beast (17:8). So we have:
- 3rd Woe (7th Trumpet)
- The trumpet sounds (11:15)
- The woeful events occur: which includes many things, but primarily all 7 bowl judgments (11:15a-16:17)
- The woe is past when Babylon has fallen (recapped in Rev ch. 17-18), and the revealing of God on earth is over (Rev 19:1-16), and the beast and his armies are taken care of (Rev 19:17-20).
Others have noted similarly.
Dwight Pentecost in Things to Come (Grand Rapids: Zondervan, 1958) states:
"The seventh trumpet and the third woe judgment (11:15) brings about the return of Christ to the earth and the subsequent destruction of all hostile powers at the conclusion of the Armageddon program" (362).
Arnold G. Fruchtenbaum in The Footsteps of the Messiah: A Study of the Sequence of Prophetic Events (Tustin, CA: Ariel Ministries, 2003) states (emphasis added):
The seventh trumpet that contains the seven Bowl Judgments is the
third woe (239).
John F. Walvoord, “Revelation,” in The Bible Knowledge Commentary: An Exposition of the Scriptures, edited by J. F. Walvoord and R. B. Zuck (Wheaton, IL: Victor Books, 1985) states:
The seventh trumpet chronologically reaches to Christ’s return. Therefore the seventh trumpet introduces and includes the seven bowl judgments of the wrath of God revealed in chapter 16 (2:956-957)
A related view has the third woe span clear to the end of the world and judgment. I do not find this supported, as I do not see the Millennial Reign of Christ as being part of the woe, the mystery being over once He has returned.
Kendell H. Easley in Revelation, Vol. 12 of Holman New Testament Commentary (Nashville, TN: Broadman & Holman Publishers, 1998) states (bold emphasis his):
The third woe is coming soon after the second woe is unleashed. The seventh trumpet introduces it—the end of the world and the time of its judgment (196).
William S. Bishop, “An Interpretation of the Apocalypse,” Bibliotheca Sacra 83, no. 330 (1926) states:
To sum up: The Sixth and Seventh Trumpets, which include, respectively, the second and the third “Woes,” extend to and through the Millennial kingdom and the end of the world; down to, but not including, the final judgment of the Great White Throne. That is to say,—they extend from verse 13 of chapter 9 through verse 10 of chapter 20; thus including very nearly one-half of the entire Book of the Apocalypse (162).
Other views exist on what the 3rd Woe is, as there are also many views on how to read Revelation, so each view will have a distinct take on what is meant and when it ends.
But from the points noted above, it seems clear that when the set of events that begin with the 7th trumpet sounding and lead to Christ's return are over, then the 3rd Woe is past as well.