Vitamin D from sunlight in Bangladesh
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 5 cities in Bangladesh.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Dhaka | 23.71°N | 23 m | none |
| Chattogram | 22.34°N | 15 m | none |
| Gazipur | 24.00°N | 12 m | none |
| Khulna | 22.81°N | 8 m | none |
| Rangpur | 25.75°N | 36 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Bangladesh →