Matthew 23:31-46. The judgement day will be at the end of times, when Jesus Christ returns to the earth for the second time, but now in a glorious way, as the King of the World.

God has set a day to judge the universe with justice through Christ whom he resurrected from death. That day all injustice will be over.

From Acts to Revelation the judgment day is announced as an invitation for conversion.
The hope in the return of Jesus Christ as the judge of living and dead is part of our faith. Every man will stand in front of God to give account for all his deeds.