What Does CM Stand For?
CM stands for Central Meridian
Central Meridian (CM) refers to a specific longitudinal line that serves as a reference point in geographic coordinate systems. It is typically designated as 0 degrees longitude, passing through Greenwich, England, and is used as the starting point for measuring degrees of east and west longitude. The Central Meridian is crucial in various applications, including cartography, navigation, and geographic information systems (GIS), as it helps define time zones and aids in accurately representing the Earth's surface.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym