Qayamat will come when all the signs become apparent and the cold sweet wind has gone through everybody and all the Muslims have passed away.

There will be only infidels remaining, and the remaining forty years where noone will have children, i.e. everyone will be over the age of forty.

There will be no one in the world who will say the word Allaah anymore.
Each and individual person will be doing their day to day duties. Someone will be building a wall, someone will be eating and then with the one and only order of Allaah, Hadrath Israfeel {alaihis salaam} will blow the Soor {horn}. The sound of the horn will first of all be very faint, and then it will start getting sharper and sharper. People will listen to the sound with great concentration and then they will become unconscious and then die. Then the skies, the ground, the sea, the mountains and even the Soor and Hadrath Israfeel {alaihis salaam} together with all the angels will be finished. At this time except for Allaah alone, there will be no one left. After this when Allaahu ta'aalaa wishes, He will bring back to life Hadrath Israfeel {alaihis salaam} and recreate the Soor, and order Hadrath Israfeel {alaihis salaam} to blow it again. As soon as the Soor is blown all the people from the beginning to the end, all the angels, humans, jinn, animals will become alive again. People will start coming out of their graves and their Aamal Naama {book of deeds} will given to them in their hands and will all start going to the field of Hashr. They will then stand and wait for their judgement and fate. The ground will be made of copper. The sun will be glowing in full strength and will be just above people's heads. With the extreme heat, people's brains will start boiling and their tongues will become as dry as thorns and many will drop out of their mouths. People will sweat tremendously, some will sweat upto their ankles, some will sweat upto their knees and some will sweat upto their faces. Depending upon their deeds, they will suffer. The sweat will also be giving off a foul stench. There will be great delay just in this position. The day will be equivalent to fifty thousand years, and half of the time will go by in this situation. People will start looking for an intercessor that can relieve them of this problem and a quick decision can be made. All the people will take advice and go to Hadrath Aadam {alaihis salaam} first. He will say go to Hadrath Nooh {alaihis salaam}, who will say go to Hadrath Ibrahim {alaihis salaam}, who will say go to Hadrath Moosa {alaihis salaam}, who will send everybody to Hadrath Eisa {alaihis salaam}. Hadrath Eisa {alaihis salaam} will send everybody to our Master Hadrath Mohammad Mustafa {sall'Allaahu ta'aalaa alaihi wa'sallam}. When the people go to our Aaqa {sall'Allaahu ta'aalaa alaihi wa'sallam} and request him to intercede, our beloved Holy Prophet {sall'Allaahu ta'aalaa alaihi wa'sallam} will say "I agree and am prepared to do this". He {sall'Allaahu ta'aalaa alaihi wa'sallam} will then perform prostration in the holy court of Allaahu ta'aalaa. Allaahu ta'aalaa will say: O Mohammad {sall'Allaahu ta'aalaa alaihi wa'sallam}, lift your head, say and it will be listened, ask and it will be given, and perform intercession and it will be accepted. Now the judgement and accounting will begin. The deeds will be weighed in the 'scales of deeds' called MeezaneAmal. Your own hands, feet and other parts will give witness against you. The part of the ground where a particular action took place will also be prepared to give witness against you. There will be no friends or helpers. A father will not help his son, nor will a son help his father. All the deeds will be unveiled. All the deeds that have been done will be in front of you. You will not be able to deny a sin nor will you be able to find a reward. In this very difficult and appalling situation, Hadrath Mohammad Mustafa {sall'Allaahu ta'aalaa alaihi wa'sallam} will help. He will perform intercession for his believers.