The Prime Meridian is Earth's zero of longitude, an imaginary line running from pole to pole. It anchors the global grid, dividing the Eastern and Western Hemispheres and serving as the foundational reference for time zones worldwide.
The Prime Meridian is Earth's zero of longitude, an imaginary line running from pole to pole. It anchors the global grid, dividing the Eastern and Western Hemispheres and serving as the foundational reference for time zones worldwide.