In Geography, the zero degree longitude is the Prime Meridian.
The longitude that includes Greenwich is by definition 0°.
Longitude is measured up & down from the Prime Greenwich Meridian (Greenwich).
The 0' line of longitude is called the Greenwich Meridian because it passes through Greenwich, Lonon
The longitude of the Greenwich Royal Observatory is always 0 degrees.
zero
zero degrees longitude
England's Royal Observatory in Greenwich (the source of Greenwich Mean Time - GMT) is 0 degrees longitude and the reference point. 120 degrees East is the longitude of the east coast of Taiwan. At that longitude, 1/3 of a circumference from Greenwich, the standard time (and date) should be 8 hours ahead of Greenwich. So if it is 4am in Greenwich, it should be noon in Taiwan.
Yes, it does. In fact, the Prime Meridian - the zero mark for longitude - is defined as the logitude of the Royal Observatory in Greenwich, England.
The Prime Meridien (0 degrees longitude) passes through the London Borough of Greenwich - hence GMT (Greenwich Mean Time).
The zero point for longitude runs trough (is in) Greenwich, England.
The Prime Meridian - in Greenwich, England - is where the starting point for measuring longitude is.
greenwich in london