One of the signs of the end of the world is that the sun rises from the west , so how that could happen ?
There is a theory called “Retrograde motion” its definition : it is in the direction opposite to the movement of something else, and is the contrary of direct or prograde motion. This motion can refer to the orbit of one body about another body or about some other point, or to the rotation of a single body about its axis, or other orbital parameters such as precession or nutation of the axis. In reference to celestial systems, retrograde motion usually means motion which is contrary to the rotation of the primary, that is, the object which forms the system’s hub.
You didn’t understand anything ,right ? :D . simply its when an object rotates around its axis clockwise and another object rotates around the first object counterclockwise and vice versa just like this photo
The object’s rotation is direct or retrograde according to the angle between the object’s axis and the plane of rotation and this Phenomenon called “axial tilt” , when the angle starts to fall between 90 degrees and 270 degrees then its rotating in a retrograde motion
Second: if the sun will rise from the west at the end of the world so there are two scenarios , the first one is that the earth stop rotating (whether suddenly or not) and I don’t support this scenario because it may cause death to all living organisms on the planet and will mess up with time , weather and a lot of things . The second scenario is tilting the axis of the earth till it will be upside down without any decrease in the speed of rotation and of course this second scenario will have a great effect on the weather and this proves another two scenarios