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It should, but it doesn't.

In the purest sense, the International Date Line should be the meridian of 180 degrees longitude.

But if it were drawn that way, then it would cross land or groups of islands in a few places, and

there would be states/countries/islands with two different calendar dates ... really not too

convenient for them. So the International Date Line follows the 180th meridian in a 'general'

way, but it has several zigs and zags in it, in order to avoid those inconvenient effects on

certain political entities.

Alaska is one of them. The Aleutian chain is that big string of islands that droops south

and west from Alaska's 'chin', stretching 1,500 miles from the mainland, all the way over to

about 172 degrees east longitude, eight degrees past the 180th meridian.

The Date Line is drawn with a big westward 'notch' in it, swinging all the way around

the Aleutian Islands, and keeping all of Alaska ... and all of the USA ... in the Western

Hemisphere, and on the same calendar day.

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13y ago
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Q: Does any part of Alaska cross the international date line?
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