How is meridian related to am and pm?

Answer 1

A meridian is an imaginary line that divides the Earth into eastern and western hemispheres, and it plays a crucial role in defining time zones. In relation to AM and PM, the meridian at 12:00 PM (noon) represents the point where the sun is at its highest point in the sky, marking the transition from morning (AM) to afternoon (PM). Thus, the concept of AM and PM is directly tied to the position of the sun relative to the Earth's meridians.