Yes, Heb. 9:26 is one of the time texts of the Bible that define the "end of the ages" as that time when Christ was made manifest on earth, which happened about 2,000 years ago during what we know as the 1st century AD.
since it had behoved him many times to suffer from the foundation of the world, but now once, at the full end of the ages, for putting away of sin through his sacrifice, he hath been manifested; (YLT)
God's word defines His terms and phrases. The problem accepting God's word for what He says is that God's word is bumping against the taught belief systems so many people have learned from their institutional churches which have been teaching false dogma for centuries.
Others have rationalized the pronoun "him" away from the obvious, saying that "Christ" does not mean Jesus in His first appearance, and try to define a new incarnation for a physical return to earth to match their expectations. That is very clearly shown to be false speculation by other Bible verses which are confirming time texts for His appearance in the last days.
In many parts, and many ways, God of old having spoken to the fathers in the prophets, 2 in these last days did speak to us in a Son, whom He appointed heir of all things, through whom also He did make the ages; (YLT)
Careful analysis shows that Heb. 1:2 says Jesus, God's son - the same Jesus also called Christ throughout the New Testament scriptures - spoke to them in the last days. He did not speak to us in the last days as we were not there. The author of Hebrews was writing to those people living about 65-66 AD when that book was written. Reading ourselves into this text is anachronistic.
Jesus spoke to the people in person during the 1st century AD, and the scriptures says that He spoke "in the last days", therefore the last days are defined by the scripture as having happened in the 1st century AD.
who being the brightness of the glory, and the impress of His subsistence, bearing up also the all things by the saying of his might -- through himself having made a cleansing of our sins, sat down at the right hand of the greatness in the highest, (Heb 1:3, YLT)
When did Jesus (Christ) sit down at the right hand of the Father? Acts 1:9 says that He ascended after His resurrection, and a few days before the day of Pentecost. So, Jesus ascended to the Father during the 1st century AD, during those same last days in which He spoke directly to His disciples.
19 but with precious blood, as of a lamb unblemished and unspotted -- Christ's --
20 foreknown, indeed, before the foundation of the world, and manifested in the last times because of you, (1 Pet. 1:19-20, YLT)
We know that Christ was manifested on earth during the days of the old Roman empire in Judea of the 1st century AD. And, in his letter to "sojourners of the dispersion of Pontus, Galatia, Cappadocia, Asia, and Bithynia" (1 Pet. 1:1), those people living in Asia Minor during the 1st century AD that Christ was manifested in the "last times."
Therefore God's word defines the "last times" as the time when Christ was manifested on earth! That means that the phrase "the last times" and "the end of the ages" and "last days" were never speaking about the end of the physical world, because 2,000 years have passed and the physical cosmos is still here.
These phrases have been taken out of time and place by most Christian doctrines and misused for fortune telling futurist belief systems. God's word defined the last days as the last days of the tribes of Israel (Gen. 49:1-27, the last of which was Judah (Gen. 49:10) where the transfer of the lawgiver was to pass to Christ, the Seed, or Shiloh.
Jesus Christ became the High Priest, the law giver, upon His immersion in the river Jordan by His cousin John in the 1st century AD, a transfer of office from the grandson of the true last Zadok High Priest, anointed from the womb (Luke 1:11-17, 76) to clear the path for the Messenger of the covenant (law) (Mal. 3:1).
The last days were the last days of the Mosaic covenant which is one of the topics of the book of Hebrews, the annulling of the old covenant (Heb. 7:18), the passing away of the old covenant (Heb. 8:13) to make way for the new covenant of Christ, which was called "the new heavens and the new earth."
When the book of Hebrews was written that old animal sacrificial temple in Jerusalem was still operating under the Mosaic covenant. Christ's return was His return in glory (Matt. 25:31) to destroy that temple (Matt. 24:2-3), and to fully establish the new covenant under His gospel, His everlasting kingdom.
The disciples knew that the destruction of that temple was a prophesied judgment from God, and called it "the full end of the age" (Matt. 24:3). Most English translations have read their belief system into the scriptures and mistranslated "aion" (age) as "world." Those are incorrect translations. Matt. 24:3 defined the "end of the age" as the time of the destruction of that temple in Jerusalem which happened in AD 70.
All of the books of the New Testament including Revelation were written before that temple was destroyed, so all of the future tense verbs of those books were still looking forward in time to AD 70. We are reading those scriptures long after those prophesies were fulfilled, and must not apply those prophesies to some future day ahead of us. The end of the age, the last days, these last times were all happening to them in their lifetime of their generation during the 1st century AD.
And, that is why Jesus told His disciples in Matt. 10:23,
...for verily I say to you, ye may not have completed the cities of Israel till the Son of Man may come. (YLT)
Jesus was giving specific instructions to specific people, and told them that they would not finish going through those cities that they knew were still paying tribute to the temple in Jerusalem in the 1st century AD before He returned to them in the 1st century AD>
And, that is why Jesus told His disciples in Matt. 16:28,
Verily I say to you, there are certain of those standing here who shall not taste of death till they may see the Son of Man coming in his reign.' (YLT)
These words were specifically spoken to specific people who were alive and were standing before Jesus when He said them in the 1st century AD. Jesus clearly said He would return in His reign, His kingdom while some of them would still be living.
If you are to maintain that Jesus has not yet returned, then you must also believe that some of those living in the 1st century AD are yet still alive today as we read these scriptures about 2,000 years later.
Hermeneutics means we examine the scriptures for their true meaning, and not read into the text belief systems that have overlaid the scriptures by the teachings and doctrines of men. Hermeneutics requires analysis from within the scriptures, and when the scriptures contradict our beliefs, then our beliefs are wrong and must be discarded.
Heb. 9:26 clearly means that Jesus Christ's manifestation / appearance on earth was during the last days of the old Mosaic covenant, which covenant was fully removed with the destruction of that temple in AD 70.
Further reading:
Did Christ Lie to His Disciples
The Zionist Lie of "These Last Days"...
...We Are Not Living in The Last Days
...The Time of His Coming