But if you take the sun as reference for the Earths roatation any point on its surface will move from West to East, which also explains why of two points the one more East will get light from the sun earlier than one in the West - effectively explaining sunrise in the East and Sunset in the West.

Additionally: Why would you say the earth rotates "east to west", when in the next paragraph you effectively say the point is moving eastwards, i.e. to east?

@Kersten I think for explaining why Sun rises from East we even don't need to take any reference because the north pole is already well defined. By knowing North of any point we can know it's east, west and south. Then for every frame of reference any point on earth will always move towards it's east.

While geographic, this question does not pertain to Geographic Information Systems (GIS). Additionally, this conforms to the your answer is provided along with the question, and you expect more answers bullet of the Don't Ask page.

@Vince If removing my speculation part makes the question a better fit for SE philosophy then I have no problem in removing that part.

It's still not a GIS question.

Well. May be it's a question of Geodesy. May be it's not. But that is what I read in my Geography book. So that's a geography question for sure. I don't know a particular SE site for geography. If there is then I request to migrate my question to the most appropriate site.

the animated gif on wikipedia is pretty much self-explanatory, isn't it?

@ymirsson But in that image too the eastern hemisphere can be seen to move towards western hemisphere. And that is my main question.

idk what you are trying to see. I see a rotation around an axis. That axis has a defined north. And every point on the surface moves in an eastward direction. End of story. Towards east means east, and not "maybe west from my current point of view on that rotating system".

A general geography question may be a better fit for Earth Science but check their help to see what is on topic there before posting.

@PolyGeo Thanks for guiding me.I've asked the question there earthscience.stackexchange.com/q/7405/5344 and I've also removed my speculation part.

@ymirsson What is East of Earth? Does it mean East of the rotation axis?

Look .. it is by (the arbitrary) definition of our coordinate system, that n/e/s/w are where they are and called what they are called. another (arbitrary) definition calles one of the meridians as 0, so you can divide the earth in 2 hemispheres. you can define your own system, call the (e.g. magnetic) poles as "some" & "thing" and the rotation directions as "foo" & "bar", thus leaving the earth in a foo (or bar) -wards direction. if you can convince the rest of the world that is. until then you have to live, use and deal with the system we have and that each surface point moves to it's east.

@ymirsson I know that each surface point moves towards its east. But the Earth doesn't move towards its east because the Earth as a whole doesn't have any East or west; it has Eastern hemisphere and northern hemisphere.

I'm sorry, you lost me. If you agree that each point moves to the east, why would you assume otherwise for a collection of those points? That makes no sense whatsoever. What you are trying to do is simply not the way you describe (or define) a rotation (b/c, as in the OP, you can end up with contradicting conclusions), thus making them just faulty assumptions. Each point moves to it's east. Any arbitrary collection of those points is still moving to their east, no matter what you call that collection.

Or let's try it this way, maybe that works better: E/W aren't "Laws of Nature", their very definition is based upon how the Earth rotates. There is no way you can come up with any conclusion that leaves you with a westwards direction, b/c it defies the whole ruleset all your assumptions are based on. For sake of the argument you could say that the eastern hemisphere moves to, where the western hemisphere was - making it still an eastwards rotation, b/c that's what "East" basically means.