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This imaginary line of longitude is the 180 degree line of Longitude.
It is on the opposite side of the planet to the Greenwich meridian.
Thus when it is 12 o'clock mid day at Greenwich, it is midnight on the 180 degree line of longitude.
As you will know midnight denotes the start of a new day (and therefore a new day's date) and this is why it is called the International date line.
In reality the internationally agreed path of the International date line does not follow the 180 degree longitude line. This is because if it did some pacific island countries would find themselves in two days at once (most confusing!). The line therefore jiggles about a bit as is crosses the pacific.
See related link below.
What else can I help you with?
Is the international date line a line of latitude?
No, the international date line is a line of longitude, not latitude.
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
What meridian forms the International Date Line?
The International Date Line roughly follows the 180th meridian.
Does the international date line pass Samoa?
Travelling west the international date line is further west. The answer is no
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 .
Which country is just east of international date line?
Alaska, USA is just east of the International Date Line.
Is papua new guinea closer to prime meridian or international date line?
International date line of course
