I am wondering how Muslims in high Northern latitudes deal with Ramadan in the Summer? It must be tough for Muslims in Scandinavia to fast when there are 20 hours of daylight.
If one is to trust the all knowing Wikipedia: http://en.wikipedia.org/wiki/Sawm#Fasting_while_in_polar_region.
Not sure if all over the world becuase in Alaska where the sun doesn't set in a good part of the year. So probably no Muslims in Alaska