> UV radiation is a carcinogen, and UV exposure is the most preventable cause of skin cancer. Federal agencies and national organizations advise taking photoprotective measures to reduce the risk of skin cancer, including using sunscreen with a sun protection factor (SPF) of 15 or higher, whenever people are exposed to the sun
I submitted info for where I live (Toronto) and a day in mid July, and it suggested 6 minutes exposure on a cloudless day. That seems like a reasonably safe duration.
On the advanced form, you can be more specific about how much of your body is exposed, what kind of skin you have, and more values to tweak for atmospheric conditions, which would allow you to calculate how much for regular t-shirt, shorts and baseball-cap attire while out walking your dog or whatever.
The result also tells you how long is too long for the given conditions. For my Mid-July Toronto example, 20 minutes is too long.
> UV radiation is a carcinogen, and UV exposure is the most preventable cause of skin cancer. Federal agencies and national organizations advise taking photoprotective measures to reduce the risk of skin cancer, including using sunscreen with a sun protection factor (SPF) of 15 or higher, whenever people are exposed to the sun
Source: https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessiona...
Better find viable sources of vit D in your diet: https://nutritionanalyzer.app/