East if you are one side of it and the west when you are on the other side of it.
They are separated by imaginary lines called the Prime Meridian and the 180th Meridian (the International Date Line approximately follows this meridian). Since only a small part of Europe is west of the Prime Meridian and even less of Asia is east of the 180th, they are effectively divided by the Atlantic and Pacific Oceans.
Prime Meridian
The Prime Meridian and its opposite the 180th meridian (at 180° longitude), which the International Date Line.
The full circle formed by the Prime Meridian and the meridian of 180° longitude separates the eastern and western hemispheres.
The full circle formed by the Prime Meridian and the meridian of 180° longitude separates the eastern and western hemispheres.
The Prime Meridian only extends from the North Pole to the South Pole along the 0° longitude line,which is only half of the Earth's circumference.The circumference of the Earth that includes the Prime Meridian is a polar circumference measuring approximately 40,008 km (about 24,860 miles), which is shorter than the equatorial circumference by about 67 km (42 miles), not including elevation above or below MSL.
Prime Meridian
Spain is not located along the prime meridian. The prime meridian passes through Greenwich, London, in the United Kingdom. Mali and Madagascar are also not located along the prime meridian. Mali is situated more to the east of the prime meridian, and Madagascar is further to the east in the Indian Ocean.
The Prime Meridian effectively divides the continent of Antarctica in half. Since prime meridians are arbitrary this is based on the Greenwich Prime Meridian.
The Prime Meridian is 1/2 of the boundary between the eastern and western hemispheres.
The tectonic plates located along the Prime Meridian are the Eurasian Plate and the African Plate.
The Eastern hemisphere and Western Hemisphere (divided by the Prime Meridian), and the Southern Hemisphere and Northern hemisphere (divided by the Equator).
they are divided by the prime meridian and equaor
The prime meridian divides the Earth into the Eastern Hemisphere and the Western Hemisphere.
North and South are divided by the Equator. East and West are divided by the 0 degree meridian and the 180 degree meridian.
The Prime Meridian runs through Greenwich, London, and serves as the starting point for measuring longitude. Since it passes through Greenwich, the Prime Meridian is located in the Eastern Hemisphere.
The hemispheres of Earth are divided by the Equator into Northern and Southern Hemispheres, and by the Prime Meridian and the 180th meridian into Eastern and Western Hemispheres.