180 degrees
No. But the Prime Meridian, which is equally important, does.
Mainly the 180 degree line.
180
180 degrees east/west longitude
The International Dateline approximately follows the meridian of 180° longitude.
The international date line roughly follows the 180° longitude line in the Pacific Ocean. When you cross this line from west to east, you advance one day, and when you cross from east to west, you go back one day.
The International Dateline approximately follows the meridian of 180° longitude.
The International Date Line is an imaginary line located at about 180 degrees longitude, mostly in the Pacific Ocean. It separates one calendar day from another when moving east or west across it.
This imaginary line of longitude is the 180 degree line of Longitude. It is on the opposite side of the planet to the Greenwich meridian. Thus when it is 12 o'clock mid day at Greenwich, it is midnight on the 180 degree line of longitude. As you will know midnight denotes the start of a new day (and therefore a new day's date) and this is why it is called the International date line. In reality the internationally agreed path of the International date line does not follow the 180 degree longitude line. This is because if it did some pacific island countries would find themselves in two days at once (most confusing!). The line therefore jiggles about a bit as is crosses the pacific. See related link below.
The International Date Line, which generally follows the 180 degree line of longitude. However, the International Date Line takes several jogs and swings east and west to keep island groups all in the same "date".
The 180 degree longitude is often miscalled international date line, when it is actually called the Anti Meridian.The date line is not a meridian or line of longitude because it is not a straight line as it deviates to separate geographical places, certain island groups for instance.See the link below for an image.The longitude that runs through Greenwich England is the prime meridian, which is 0 deg longitude.
One degree east and one degree west. You're probably looking for the prime meridian and the International Date Line, but the IDL isn't a specific line of longitude.