[ip26]

Skin shade, location, time of year, and atmospheric conditions are other huge variables.

My pale skin in the midday desert sun for fifteen minutes in July? I'd have a pretty serious burn.

[minton]

Your skin may be burned but you wouldn’t likely have a vitamin D overdose.

[abstractbarista]

You must be really pale. I'm super pale and it takes at least twice as long to start a light burn.

[ip26]

I'm not that pale but it's shocking how fast you can burn in some places. Denver, for example, has a mile less atmosphere protecting you and little UV-blocking humidity. While New Zealand famously has the ozone hole. I don't burn nearly as fast in San Francisco.