Answer: The longitude-based system for standardized time is used to determine time zones around the world. This system divides the Earth into 24 longitudinal sections, each representing one hour of time difference from the adjacent zones. The Prime Meridian at 0 degrees longitude (often located at the Royal Observatory in Greenwich, England) serves as the reference point for Coordinated Universal Time (UTC), also known as Greenwich Mean Time (GMT).
As you move eastward from the Prime Meridian, each 15-degree increment corresponds to one hour ahead of UTC, while moving westward represents one hour behind UTC. This system helps maintain a consistent and coordinated timekeeping standard globally, ensuring that different regions of the world can have synchronized time for various purposes, including commerce, transportation, and communication.