Because the meridian cuts through some inhabited island groups, and other geopolitical locations. IF the meridian itself were determined to be the dateline, then these places would suffer the problem of having part of their territory in one date zone, and part another date zone. Some sections of the actual dateline has been arbitrarily relocated to provide unified date and time for these locations.
The International Date Line roughly follows the 180th meridian.
The international date line is a meridian. It is also known as the Greenwich Meridian .
not sure what is up with all that^ but from the north pole to the south pole on one side of the world the international date line is the international date line. On the other side of the world The international date line is the prime meridian
The line 180 degrees east and west of the prime meridian is called the International Date Line.
The 180th meridian is also known as the International Date Line. This imaginary line determines the change in calendar date when crossing it from east to west.
International date line of course
The international date line
No it does not.
If you travel to any place that is half-a-globe around the earth from the Prime Meridian, you'll be located at longitude 180 degrees. If you're expecting to find a line there, you'll be disappointed. There is no line there.
Prime meridian, International Date Line, time zones
Greenwich
The Prime Meridian The International Date Line