Scripture teaches that armies surrounding a future Jerusalem will be a sign that Daniel's AOD is near Luke 21:20, this AOD will start the future 3.5 year great tribulation in the Antichrist proclaiming to be God-Messiah in Jerusalem 2 Thess 2:3-4
(The Beast) and (The Two Witnesses) will be on this earth in Jerusalem during the same time frame of 3.5 years, the two prophets returned will bring all plagues upon the wicked world so often as they will as the Holy Spirit sealed Church is protected Rev 9:4, Eph 1:13, 4:30 a good description of these plagues can be seen in Rev 16:1-11, its going to be a complete remake of Moses/Aaron against Pharaoh of Egypt
When the prophets returned have finished their work on earth (The Beast) will kill them, their dead bodies will lay in a literal Jerusalem street for 3.5 days as a wicked world watches in celebration because the plagues brought by them tormented the world, after this 3.5 days they will be raised from the dead when God raises them to heaven
After the two prophets are raised to heaven (The Same Hour) the great earthquake takes place as the 2nd woe is fulfilled, the 3rd woe comes even quicker in the 7th Angel/Trump Rev 11:15 in the second coming of the Lord in fire and final judgement Rev 11:18 (The End)
Conclusion: From the time (The Beast) kills the (Two Witnesses) until the time the 7th trump is blown will be a matter of about 4 days
The Beast & The Two Witnesses will be on the earth for the same time frame of 3.5 years as clearly shown, simple, clear, easy to understand, 3.5 days + 1 hour + quickly = Roughly 4 days = (The Last Day) The End
Jesus Is The Lord