Prewrath
According to prewrath, this passage clearly indicates that the coming of the Lord and the Day of the Lord are part and parcel of the same event, the coming of the Lord. First, Jesus arrives in the sky at His Second Coming, at which time He raptures all Christian believers, then His judgment during the Day of the Lord falls upon those who have disbelieved and rejected His lordship.
This is justified, according to prewrath, by the fact that Jesus places His return (Matthew 24:30–31) after the abomination of desolation (Matthew 24:15), which occurs at the midpoint of the 70th Week (cf. Daniel 9:27, Daniel 11:31). Thus, if the Second Coming and rapture occur after the sixth seal, this places this event after the midpoint but before the end (seventh trumpet).
Seventh-day Adventist eschatology
The Second Coming of Jesus Christ marks the beginning of the Millennium, according to Adventist teaching. At the second coming, the righteous dead will be resurrected (the "first resurrection", Revelation 20:5), and both they and the righteous living will be taken to heaven to reign with Christ for 1000 years. The rest of mankind (the wicked, or unrighteous) will be killed at the second coming, leaving the earth devoid of human life.