Vitamin D from sunlight in Afghanistan
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 3 cities in Afghanistan.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Kabul | 34.53°N | 1,798 m | 1 Jan – 1 Jan (7 days) |
| Herāt | 34.35°N | 927 m | 13 Dec – 4 Jan (23 days) |
| Mazār-e Sharīf | 36.71°N | 361 m | 23 Nov – 25 Jan (64 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in Afghanistan →