I can't read the full article, but The Atlantic has covered it: https://www.theatlantic.com/international/archive/2013/07/how-to-fast-for-ramadan-in-the-arctic-

I can't read the full article, but The Atlantic has covered it: https://www.theatlantic.com/international/archive/2013/07/how-to-fast-for-ramadan-in-the-arctic-where-the-sun-doesnt-set/277834/ https://www.theatlantic.com/international/archive/2013/07/ho... I know in Space astronauts are told to follow the timezone of where they are from