AP Longitude

AP Longitude, or Antemeridian Prime Longitude, refers to the line of longitude that is 180 degrees from the Prime Meridian, which is at 0 degrees longitude and runs through Greenwich, England. This line essentially separates the Eastern and Western Hemispheres. The Antemeridian is significant for timekeeping, as it helps define the boundaries of time zones, particularly in determining the International Date Line, where the date changes as one travels east or west. Understanding this concept is important for navigation, geography, and global communication.