# Why is there change of date and day at the international date line?

## Why is there change of date and day at the international date line?

The international date line is not a perfectly straight line. Since its beginning, it has zigzagged to avoid splitting apart countries into two days. It bends through the Bering Strait to avoid placing far northeastern Russia in a different day than the rest of the country.

## How does the international date line work?

The international date line functions as a “ line of demarcation ” separating two consecutive calendar dates. When you cross the date line, you become a time traveler of sorts! Cross to the west and it’s one day later; cross back and you’ve “gone back in time.”

What are the effects of international date line?

The International Date Line provides a standard means of making the needed readjustment: travelers moving eastward across the line set their calendars back one day, and those traveling westward set theirs a day ahead.

Does the international date line separate the days?

Different Days on Either Side The International Date Line is the boundary where each calendar day starts and is also known as the “Line of Demarcation” because it separates two calendar dates: When you cross the date line traveling east, you subtract a day, and if you cross the line from traveling west, you add a day.

### How do you explain a dateline?

The date line, also called the International Date Line, is a boundary from which each calendar day starts. Areas to the west of the date line are one calendar day ahead of areas to the east. The date line runs from the North Pole to the South Pole through the Pacific Ocean. It is not a straight line, however.

### Where is the International Date Line on the Earth?

Additional resources The international date line (IDL) is an imaginary line that runs along the Earth’s surface from the North Pole to the South Pole in the middle of the Pacific Ocean. When you cross it, you either gain or lose a day depending on which way you are traveling.

Is the International Date Line an imaginary line?

The International Date Line (IDL) is an imaginary line on Earth’s surface defining the boundary between one day and the next.

Where is International Dateline West?

The International Date Line is located halfway around the world from the prime meridian (0° longitude) or about 180° east (or west) of Greenwich, London, UK, the reference point of time zones. It is also known as the line of demarcation.

#### Why did they move the International Date Line?

In 1995, the country decided to move the international date line. Because the line is simply established by international agreement and there are no treaties or formal regulations associated with the line, most of the rest of the world’s nations followed Kiribati and moved the line on their maps.