Where on Earth does the sun rise first?

Mar 4, 2020
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Sunrise is a line, 1/2 the length of earth's circumference. Sunset is a line for the other 1/2 length of earth's circumference. Sunrise lines and sunset lines are in constant motion. In reference to a location on earth.

No one knows the starting positions of these lines in reference to a location on earth. But they would have been 90 degrees of incident/normal sunlight. As they are now.

So the answer to where is the first sunrise, or sunset, would be, is 90 degrees of normal sunlight for both.
 

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