Correct. The town of Greenwich, in England, lies on the Prime meridian (or zero degrees longitude)
51 degrees north and 0 degrees east/west
The Prime Meridian - 0 degrees - runs through Greenwich, which is a suburb of London.
0 degrees longitude runs through Greenwich which is a suburb of southeast London, which is where Greenwich Mean Time (GMT) comes from.
longitude.
0 degrees longitude
Ealing is located in west London, England, United Kingdom. The geographical coordinates are approximately 51 degrees 30' 0" North and 0 degrees 19' 0" West.
London is 51 degrees north and 0 degrees east/west.
The prime meridian is a line at 0 degrees longitude.
The Equator is 0 degrees latitude, and the Prime (or Grenwich) Meridian is 0 degrees longitude.
longitude
Africa is at 20 degrees north latitude and 0 degrees longitude
The prime Meridian is 0 degrees longitude.