Here in the far North our days are quite long between June 21 and Oct 21 so now we start our fast at approx 6:30 AM and end at near 8:30 PM. But we make up for it between OCt 21 and Mar 21 when the days will get down to about 6 hours long. Not much farther north of me there is only one day and night in the year the sun rises on Mar 21 and does not set until Oct 21
Where I am now is very close to the northern most point in the continental USA we are actually North of the southernmost part of Alaska.
This site has pictures of the midnight sun a seen in Alaska this time of year.