My first thought as well as a swede. And coincidentally one of the things my old Kenyan classmate found the most strange about Sweden was the fact that the length of day was not even close to constant. That and when I explained to him that the sun being up doesn’t necessarily mean warmer weather, in the winter it’s practically takes the temperature further from zero as sun means no warming clouds…

As former Alaska resident, can confirm. December sunrises are often after 10am, and sunsets before 4pm. Vice versa in summer.

Then you get above the Arctic Circle, and there are days with neither. :D