what is the importance of international date line

It is the border of  date between countries
 

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

The other half of the prime meridian line is the 180 degree longitude and it is named as the international date line,It is used to know the change of date and day

International date line is an imaginary line that runs from northern hemisphere to the southern hemisphere. It helps to calculate the date and day.

The international date line is an imaginary line formed when the 180 degree east and 180 degree west longitudes meet each other on the opposite side of the world.Its uses are:
1. It helps us to determine where on earth the date changes
2 The places on the west of the international date line loses a day ans the places on the east gains a day

international date line helps us to locate the boundary between a day and the next 

The International Date Line ( IDL) is the meridian of 180 degree. 180 degree east and 180 degree west is the same meridian but it is not a straight line. It is drawn on a map in a zig-zag manner to accommodate countries or groups of islands on one side of it. If we cross this line from West to East; we adjust our watches by adding a day but we subtract a day when we cross the International Date Line from East to West. It also passes to pacific ocean.
It is useful to us because it describes the border from one day to next. Though the times on either side of the line are close to each other; the date on the west side is a day ahead of the east side.

International date line is needed to calculate the date and the time. It seperates northern hemisphere from southern hemisphere

It is an imaginary line which tell us about the clender and dates

International date line is an imaginary line that runs from northern hemisphere to the southern hemisphere. It helps to calculate the date and day.

International date line is an imaginary line that runs from northern hemisphere to southern hemisphere .it helps to calculate the date and day.

Hwfi

border of dates between 2 countries
from going west to east you gain a day
from going east to west you lose a day 
SIMPLE

Simply

international line is imaginary line which moves from nothern to southern hemisphere.

I DON'T KNOW SORRY!!!!!

Before criest

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The International Date Line ( IDL) on the map. 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.

International date line an imaginary line that runs from north to south it is helping with calculation of total day and night and it is also know as (IDL) international date line .


Hope this is will help you becuase i am new here ?

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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. It is located halfway round the world from the prime meridian?the zero degrees longitude established in Greenwich, England, in 1852.

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."

Despite its name, the International Date Line has no legal international status and countries are free to choose the dates that they observe. While the date line generally runs north to south from pole to pole, it zigzags around political borders such as eastern Russia and Alaska?s Aleutian Islands.

separates two different days on the calendar

The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.

The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.Emergent Layer.?The top layer of the rainforest?is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun's rays.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.These trees have thick branches allowing birds and other flyers to call it home. Temperature in the rain forest is between 70 to 95 degrees year round. Because this is the highest layer temperature changes are common. This layer also is the first to receive the rain.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.The emergent layer consists of the tallest trees in the rainforest and they can grow up to 60 metres. They are higher because they are able to trap more sunlight to help them make more food to grow. Emergent trees are supported by buttress roots which prevent them from blowing over in high winds.