I live in Asia so I spent my whole life having sunset between 6 to 630pm so by that time everywhere was pretty dark and the streetlamps came on. I was pretty shocked later in life when I found out that there are parts of the world like in Europe or the States where it’d still be bright out at fucking 730 or even 8pm. How come? I know that they are behind by Asia and Australia by some hours but why does the sun set later there too?
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This is because the Earth’s axis is tilted by 23.4°. As the year progresses, the amount of daylight changes. The further towards the Poles you are from either Tropic, the bigger shift you’ll see in the length of day during a year.
As an extreme example, in the summer, areas north of the Arctic Circle never get dark, because the Sun never drops below the horizon and vice versa, in peak winter, the sun never rises.
Visual aid: [https://en.wikipedia.org/wiki/Arctic_Circle#/media/File:Axial_tilt_vs_tropical_and_polar_circles.svg](https://en.wikipedia.org/wiki/Arctic_Circle#/media/File:Axial_tilt_vs_tropical_and_polar_circles.svg)
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