howmuchsun

Vitamin D from sunlight in Zimbabwe

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 Zimbabwe.

CityLatitudeElevationVitamin D winter
Harare 17.83°S 1,494 m none
Bulawayo 20.15°S 1,348 m none
Chitungwiza 18.01°S 1,435 m none

How these dates are calculated