The short answer is "no."
The somewhat longer and slightly more accurate answer is "neither, but of the two it's a lot more like a meridian."
meridian line of longitude 180 degress middle of the pacific ocean.
Meridian
No. It crosses all of the parallels, and generally follows the 180° meridian.
Parallel: 0o latitude
The International Date Line roughly follows the 180th meridian.
Is the prime meridian (: . I think
The international date line is a meridian. It is also known as the Greenwich Meridian .
The equator is a parallel because it is a line of latitude that circles the Earth horizontally, dividing it into the Northern and Southern Hemispheres.
The International Date Line is close to the meridian of 180 degrees longitudefor much of its length, but doesn't follow it exactly, in order to avoid splittingany single island, state, or country into two different calendar dates.Helpful Spelling Glossary:-- Parallel . . . a line of constant latitude-- Meridian . . a line of constant longitude
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.
There are no geographic lines that are parallel to the Prime Meridian. Technically, every meridian of longitude is parallel to every other meridian of longitude, but only over an infinitesimal distance north or south of the equator. I'm quite sure that's not what you're looking for.
The line 180 degrees east and west of the prime meridian is called the International Date Line.