Actually according to the Scriptures we have been in the last days since the ascension of the Lord.

Hbr 1:1 GOD, who at various times and in various ways spoke in time past to the fathers by the prophets,
Hbr 1:2 has in these last days spoken to us by His Son, whom He has appointed heir of all things, through whom also He made the worlds;

1Jo 2:18 Little children, it is the last hour; and as you have heard that the Antichrist is coming, even now many antichrists have come, by which we know that it is the last hour.
1Jo 2:19 They went out from us, but they were not of us; for if they had been of us, they would have continued with us; but they went out that they might be made manifest, that none of them were of us.

1Jo 4:1 BELOVED, do not believe every spirit, but test the spirits, whether they are of God; because many false prophets have gone out into the world.
1Jo 4:2 By this you know the Spirit of God: Every spirit that confesses that Jesus Christ has come in the flesh is of God,
1Jo 4:3 and every spirit that does not confess that Jesus Christ has come in the flesh is not of God. And this is the spirit of the Antichrist, which you have heard was coming, and is now already in the world.
1Jo 4:4 You are of God, little children, and have overcome them, because He who is in you is greater than he who is in the world.

Jud 1:17 But you, beloved, remember the words which were spoken before by the apostles of our Lord Jesus Christ:
Jud 1:18 how they told you that there would be mockers in the last time who would walk according to their own ungodly lusts.