howmuchsun

Vitamin D from sunlight in Turkmenistan

How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 1 city in Turkmenistan.

CityLatitudeElevationVitamin D winter
Ashgabat 37.95°N 219 m 16 Nov – 1 Feb (78 days)

How these dates are calculated