Just now it is the darkest month here in Finland. If the sky is not fully cloudy, I can see the sun in Turku from 08.06 am to 16.22 pm. It means, that I live in “darkness” at least 16 hours a day.
Now my primer source of Vitamin D is not the sun, but a Vitamin D3 supplement. I take one 2000 IU capsule during my breakfast.
Check out the videos below: