General Signs and Descriptions of the Day of Judgment
From the Qur'an, we may learn that: this event is inevitable, there is a set time for it (no delays), all people would expire (with maybe some exceptions?), then they would be brought back to life (the rise of the dead). We also learn that on the Day of Judgment, God would come with angels at His side, and we would be meeting Him, and judgment would be passed on each individual. We would also have warnings and announcements preceding it, and we learn that Jesus would be one of the Signs of the Hour :
[11:102-7]: ..In that is a Sign for those who fear the penalty of the Hereafter: that is a Day for which mankind will be gathered together: that will be a Day of Testimony. Nor shall We delay it but for a term appointed. The day it arrives, no soul shall speak except by His leave: of those (gathered) some will be wretched and some will be blessed. Those who are wretched shall be in the Fire: There will be for them therein (nothing but) the heaving of sighs and sobs: They will dwell therein for all the time that the heavens and the earth endure, except as thy Lord willeth: for thy Lord is the (sure) accomplisher of what He planneth.
[69:17] : And the angels will be on the sides thereof, and eight will uphold the Throne of thy Lord that day, above them.
[50:20] : And the Trumpet shall be blown: that will be the Day whereof Warning (had been given). And there will come forth every soul: with each will be an (angel) to drive, and an (angel) to bear witness.
[39:68-69]: "And there shall be a blast on the Trumpet, and all
who are in the Heaven and all who are on the earth shall expire, save
those whom God shall vouchsafe to live. Then shall there be another blast
on it, and lo! arising they shall gaze around them: and the earth shall
shine with the light of her Lord."