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The International Date Line is an imaginary line of longitude from which all other times are calculated. Greenwich Mean (or Meridian) Time (GMT) is the mean (average) time that the earth takes to rotate from noon-to-noon. GMT sets the current time or official time around the globe. The time zones division was officially adopted on 1 November 1884, at a meeting of the International Meridian Conference in Washington, DC, USA. During the conference, the International Date Line was drawn up and 24 time zones created, every 15 meridians east and west of 0 (the prime meridian) at Greenwich, England.

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Related Questions

What are the Important lines of longitude?

The Prime Meridian The International Date Line


Is the international date line a line of latitude?

No, the international date line is a line of longitude, not latitude.


What are the two important lines of longitude?

The two important lines of longitude are the Prime Meridian (0 degrees) and the International Date Line (180 degrees). The Prime Meridian is the starting point for measuring longitude, while the International Date Line marks the change of one calendar day to the next.


What is the curious feature of international date line?

no countries lies in international date line


What is imaginary line in the pacific ocean that separates days?

the international date line


Does the international date line pass Samoa?

Travelling west the international date line is further west. The answer is no


What meridian forms the International Date Line?

The International Date Line roughly follows the 180th meridian.


Is the International Date line of japan and Hawaii the same?

The International Date Line is the same for all nations.


Where international date line located?

the international date line sits on the 180 0 line of longitude in the middle of the Pacific Ocean , and is the imaginary line that separates two consecative calendar days


Two oceans does the International Date line pass?

The International Date line crosses the Arctic and Pacific oceans.


Which side does Australia located on the international date line?

Australia sits to the west of the international date line. If it is Saturday in the US, it is Sunday in Australia.


Is the international date line a parrallel or a merdian?

The international date line is a meridian. It is also known as the Greenwich Meridian .