24 Hours. When you pass the international date line which is the meridian of 180 longitude, you add a day if going west or subtract a day going east.
nominally 12 hours
12
Morocco
The International Date Line and the Prime Meridian both separate the eastern from the western hemisphere.
The Prime Meridian is part of the boundary between the eastern and western hemispheres. The International Date Line is the rest of the boundary.
180 degrees of longitude.
The second name for the prime meridian is the international date line
By definition and international agreement, the Prime Meridian is Zero longitude.All longitudes on earth are measured east and west of the Prime Meridian.
differences between equator and prime meridian
differences between equator and prime meridian
The Prime Meridian, which is why it is known as the Greenwich Meridian.
The Greenwhich meridian also Prime Meridian is 0 degrees longitude and International Date Line roughly follows the 180° longitude or antimeridian. The antimeridian is the meridian which is 180° east or west of the Prime Meridian.