Christians do not describe Jesus’ second coming to be “The Last Days.” Atheists’ do.
2 Timothy vs. 1 refers to “The Last Days”.
This would be the evil period before The Rapture of the Church — then the 7-yr. Tribulation followed by Christ’s 2nd Coming, followed by the Millennium. The Millennium is the 1000 year reign of Jesus.
After the Millennium, the Judgment of God will occur - The Great White Throne Judgment.