Question

state the meaning and application if the international date line​

Answer 1

Answer:

The International Date Line serves as the "line of demarcation" between two consecutive calendar dates. ... The International Date Line, established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth.

The date line is necessary to avoid a confusion that would otherwise result. For example, if an airplane were to travel westward with the sun, 24 hr would elapse as it circled the globe, but it would still be the same day for those in the airplane while it would be one day later for those on the ground below them.

Explanation:

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Answer 2

Our earth is divided into longitudes which are 360 if we count from prime meridian to west and from meridian to east we will find which line is said to be of 180 degree is same line from both sides that line is called international date line