I live in Kirkkonummi, which is on the Southern coast, about 30 km west of Helsinki, the capital city. We only get down to about 5 hours of light in mid winter, and in midsummer, the sun only sets for about 5 hours. Today, the day will be 15h 11min long here.
Utsjoki, which is about as up north as you can get (it's just shy of the 70th parallel north) will have sunset on November 27th, and then they won't have another sunrise until January 17th. Then the day will slowly get longer, until May 18th when after sunrise it won't set before July 28th. Up there in the northern parts you will get awfully cold winters, with record colds below -50C. On the other hand, due to the long days in summer, they also enjoy a very nice summer, +25C isn't uncommon, and record highs are somewhere in the +32C range.
Thanks I'll show him your post.