The antimeridian, at longitude 180° (West/East).
The International Dateline is not the same thing, it skirts several areas to make time zones work better, and so doesn't have a consistent longitude.
That would be the 180° meridian, both east and west.
If you're thinking of the International Dateline, that's true in principle
but not in actual practice. The IDL has been drawn separate from the
180° meridian over much if its length, in order to avoid splitting any
state, country, or island group into two different calendar dates.
Had that not been done, then the state of Alaska and therefor the
USA, for example, would have had two different dates in the country.
That would be 180 degrees longitude, either east or west ...
they're both the same meridian.
The International Date Line doesn't follow that meridian in most places.
The longitude of the 180 degrees meridian is 180 degrees, both east and west.
180 degree meridian.
The 180th Meridian.
The Prime Meridian (located at 0 degrees longitude) goes through the western part of Africa from Algeria in the North to Ghana in the South, passing through parts of Mali, Burkina Faso, and Togo on the way.
A meridian is a constant longitude circle passing at a given place. The meridian in Greenwich is also called the Prime Meridian which is set at zero longitude.
The prime meridian in located at 0 degress longitude, and passes through Grenich, England.
The Prime Meridian, also called the Greenwich Meridian, is 0 degrees longitude. The observatory where the Meridian is defined is in Greenwich, England. The line passes from the North Pole through England, Europe, Africa, and ends at the South pole in Antarctica. Opposite the Prime Meridian is the International Date Line, or the Ante-Meridian. The choice of the Meridian is entirely abitrary. At various time the Meridian has been set at other locations. The US even used Washington, DC, as the Prime Meridian. Standardization was important for global navigation, so it was finally agreed to use Greenwich as the meridian "0" reference. This is especially convenient because the Ante-Meridian dateline is located where there are no large land masses.
The prime meridian, the "zero" line of longitude, is defined as passing through the Royal Observatory in Greenwich, England.
It's known as the meridian of 180o longitude.
The Prime Meridian (located at 0 degrees longitude) goes through the western part of Africa from Algeria in the North to Ghana in the South, passing through parts of Mali, Burkina Faso, and Togo on the way.
A meridian is a constant longitude circle passing at a given place. The meridian in Greenwich is also called the Prime Meridian which is set at zero longitude.
The prime meridian in located at 0 degress longitude, and passes through Grenich, England.
The Prime Meridian, also called the Greenwich Meridian, is 0 degrees longitude. The observatory where the Meridian is defined is in Greenwich, England. The line passes from the North Pole through England, Europe, Africa, and ends at the South pole in Antarctica. Opposite the Prime Meridian is the International Date Line, or the Ante-Meridian. The choice of the Meridian is entirely abitrary. At various time the Meridian has been set at other locations. The US even used Washington, DC, as the Prime Meridian. Standardization was important for global navigation, so it was finally agreed to use Greenwich as the meridian "0" reference. This is especially convenient because the Ante-Meridian dateline is located where there are no large land masses.
The prime meridian, the "zero" line of longitude, is defined as passing through the Royal Observatory in Greenwich, England.
One of the earliest Prime Meridians was defined as passing through the Royal Observatory at Greenwich, England (hence its name as the Greenwich Meridian). The international reference meridian (IRM) which is used by GPS units as 0° latitude passes 5.31 arcseconds east of the Greenwich Meridian - about 100 meters - which is still well withing England.
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No. The international prime meridian passes through the Royal Observatory in Greenwich, England. There's nothing in principle stopping an Asian country from declaring its own prime meridian passing wherever it wants it to be, but they'd be different from the standardized maps of almost all other nations if they did so.
The Prime Meridian runs from pole to pole, passing through the Greenwich Observatory, London, England.
The Prime Meridian is passing through The British Royal Observatory at Greenwich near London.
They're labeled E (or W) to show that they're (E)ast or (W)est of the prime meridian (which is the line of longitude passing through Greenwich Observatory near London). 15 degrees East and 15 degrees West are the same distance from the prime meridian, but in opposite directions.