Greenwich won overwhelmingly, as the United States already considered it the location and Greenwich was used extensively for sea navigation. Greenwich Mean Time was "zero hour" for setting clocks ...

The Royal Observatory Greenwich celebrates its 350th anniversary today. Founded by King Charles II on June 22, 1675, the observatory was tasked with solving "the longitude problem," the lack of ...

The researchers said that while the location of the meridian may have moved under the new system, the plane used to measure Universal Time (the modern equivalent of Greenwich Mean Time) has ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...

Greenwich Mean Time. Greenwich Mean Time (GMT) is a time scale based on the apparent motion of the “mean” Sun with respect to the meridian through the Old Greenwich Observatory (0° longitude).