The International Date Line (IDL) roughly follows the 180° longitude which is called the 180th meridian or antimeridian.
Unlike lines of longitude which are straight lines, the Date Line deviates to pass around some territories and island groups (Fiji, Tonga, Samoa, etc). The Date Line deviates from the straight line of longitude to keep it from passing through countries such as the USA (Alaska), Russia (Wrangel Island and Chukchi Peninsula), or New Zealand, and island nations such as the Marshall Islands and the Aleutian Islands.
the international date line is 0 degrees
The line 180 degrees east and west of the prime meridian is called the International Date Line.
Most of it is at 180 degrees.
international date line
International Date Line
Whether travelling to the West or to the East from the Prime Meridian (zero Longitude) the International Date Line is 180 degrees Longitude.
Most of the International Date Line.
The international date line
The international date line
International Date Line. Nominally 180 degrees east (or west) longitude. Opposite the Prime Meridian.
180 degrees of longitude.
it is called international date line