Why Greenwich meridian is named so?

The Greenwich Meridian is named after Greenwich, a district in London, England, where the Prime Meridian (0 degrees longitude) was established. In 1884, an international conference chose this location as the standard for global timekeeping and navigation, largely due to its historical use by mariners. The meridian serves as the reference point for Coordinated Universal Time (UTC) and divides the eastern and western hemispheres of the Earth.