The Antimeridian.
The difference between those two positions is 180 degrees in longitude.
East longitude ranges from 0 degrees to 180 degrees.
360 degrees. Longitude runs from 180 degrees East to -180 degrees West.
The largest possible values for longitude range from -180 degrees to +180 degrees. This means that the biggest numbers in longitude are 180 degrees east and 180 degrees west, which actually represent the same line on the opposite sides of the Earth. Longitude measures the distance east or west of the Prime Meridian, which is at 0 degrees.
+180 degrees.
180 degrees
There is no 200 degrees of longitude. There is 180 degrees west of the Greenwich Meridian and 180 degrees east of the Greenwich Meridian. All degrees of longitude on earth converge at the South and North Poles.
180
180
0 degrees longitude
The divisions of longitude are measured in degrees. The Earth is divided into 360 degrees of longitude, with the Prime Meridian (0 degrees longitude) serving as the starting point. Longitudes range from 0 degrees to 180 degrees east or west of the Prime Meridian, with 180 degrees being the International Date Line.
Las Vegas is located at approximately 115 degrees west longitude. To find the degrees of longitude that separate it from the International Date Line at 180 degrees, you subtract 115 from 180, resulting in a difference of 65 degrees. Therefore, there are 65 degrees of longitude between Las Vegas and the International Date Line.