Greenwich Mean Time was a specific time used on the planet Earth as a standard time for many years. Greenwich Mean Time was first measured and transmitted on the Shepherd Gate Clock at the Royal Observatory in Greenwich. (DTI novel: Watching the Clock) An international convention chose to run Earth's zero meridian through Greenwich, establishing Greenwich Mean Time. (DS9 - Millennium novel: The War of the Prophets) External link[edit | edit source] Greenwich Mean Time article at Wikipedia, the free encyclopedia. Retrieved from "https://memory-beta.fandom.com/wiki/Greenwich_Mean_Time?oldid=417723" Categories: Memory Beta articles sourced from novels Time Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.