1884
Greenwich observatory
The Prime Meridian is an imaginary line that divides the Earth into Eastern and Western Hemispheres, but the day officially changes at the International Date Line, which is located approximately opposite the Prime Meridian. The International Date Line is where the calendar day officially changes.
The second name for the prime meridian is the international date line
CAUSE ITS in the middle
By definition and international agreement, the Prime Meridian is Zero longitude.All longitudes on earth are measured east and west of the Prime Meridian.
The Prime Meridian, which is why it is known as the Greenwich Meridian.
The Greenwhich meridian also Prime Meridian is 0 degrees longitude and International Date Line roughly follows the 180° longitude or antimeridian. The antimeridian is the meridian which is 180° east or west of the Prime Meridian.
The longitude of the Prime Meridian, by international definition and agreement, is zero (0°). .Every point on the Prime Meridian has a different latitude, and every latitude on Earthhas a point on the Prime Meridian.
The spelling is "prime meridian". That is the meridian from which counting begins; i.e., the prime meridian, by definition, has longitude zero, and degrees are counted to the east and to the west of the prime meridian. In the international system currently used, that is the Greenwich meridian - a meridian that goes through the Greenwich Observatory in London.
Prime meridian, International Date Line, time zones
No. That would be the International Date Line.The Prime Meridian is defined as zero longitude.
The prime meridian is designated as 0 degrees longitude, dividing Earth into the Eastern and Western Hemispheres.