The Greenwich Meridian, or prime meridian, is the imaginary line that runs through Greenwich, England, and it is designated as 0 degrees longitude. This line is used as a starting point for measuring the lines of east an... More »

Greenwich Mean Time is determined by how many degrees of longitude a location or region is from the Greenwich Meridian line. Each 15 degree shift of longtitude from Greenwich Meridian signifies a one-hour difference, giv... More »

www.reference.com Science Time & Calendars Time Zones

The Prime Meridian passes through Greenwich, England. The original Royal Observatory, today's Flamsteed House, commemorates the establishment of the Prime Meridian with a museum and official denotations on the ground and... More »

Greenwich Mean Time is determined by how many degrees of longitude a location or region is from the Greenwich Meridian line. Each 15 degree shift of longtitude from Greenwich Meridian signifies a one-hour difference, giv... More »

www.reference.com Science Time & Calendars Time Zones

The Greenwich Mean Time serves as the base reference used for time zones around the world and is based on the line of longitude that passes through the Greenwich district of London. A hypothetical average day in Greenwic... More »

The prime meridian is internationally recognized as the longitude of the Royal Observatory at Greenwich near London, England, because of the influence of the United Kingdom in the 1800s. This location was selected at an ... More »

Latitude and longitude are listed terms of degrees, minutes and seconds in reference to either the equator, for latitude, or Greenwich, England, for longitude. For instance, the latitude 48?22'34"N is read as 48 degrees,... More »