2) How many hours of daylight are there per day in Iceland?

Daylight hours alter drastically throughout the winter period, from around 6-7 hours in early November and late January/early February, to just a couple of hours in mid-December. As the Spring equinox approaches in March, daylight hours increase by an average of 15 minutes per day. And by mid-March you'll have at least 12 hours of daylight.