Learn what the Prime Meridian is and how it splits the two hemispheres. ... The map above shows the 24 time zones across the world. Image caption, It is night-time where Sue Venir is, ...

June 22 marks the 350th anniversary of the Royal Observatory Greenwich, the home of the historic Prime Meridian that is ...

A line of longitude on maps called the Prime Meridian of the World has shifted 334 feet to ... The prime meridian was used to establish Greenwich Mean Time, upon which all other time zones now depend.

The prime meridian divides the world's hemispheres. (Image credit: Public domain) ... the BHI chose to have its newly applied system shift the map rather than the time zones. ...

In 1884 a conference in Washington of 25 nations agreed that Greenwich would be the world's Prime Meridian of world time and time zones. Every place on the Earth is measured in terms of its ...

1884: Geographers and astronomers adopt Greenwich as the Prime Meridian, the international standard for zero degrees longitude. The late 19th century was an era of standardization. With the Second ...