The International Date Line zigzags around the 180th Meridian.
The 180th meridian or antimeridian is the meridian defined as 180° longitude. It is the line of longitude exactly opposite the Prime Meridian. It is common to both east longitude and west longitude. It is used as the basis for the International Date Line because it for the most part passes through the open waters of the Pacific Ocean. However, it does pass through a few countries as well as Antarctica: Download high resolution version (495x1443, 171 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (495x1443, 171 KB) Wikipedia does not have an article with this exact name. ... Longitude, sometimes denoted by the Greek letter λ (lambda),[1][2] describes the location of a place on Earth east or west of a north-south line called the Prime Meridian. ... Location of the Prime Meridian Prime Meridian in Greenwich The Prime Meridian, also known as the International Meridian or Greenwich Meridian, is the meridian (line of longitude) passing through the Royal Greenwich Observatory, Greenwich, England — it is the meridian at which longitude is 0 degrees. ... The International Date Line around 180° This article is about the line dividing time zones; see Dateline (disambiguation) for other meanings, including the television program. ...
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