I don’t think that direct exposure to sunlight kills coronavirus, which to me (If it did) would indicate UV sensitivity which I am pretty sure it has, just not sunlight levels of UV. That is, putting it in a UV chamber (which I presume has MUCH higher levels of UV) will kill it, but actual sunlight might not.
However, what does kill it is heat, so if it is outdoors on an exposed surface that is heated by sunlight, that will kill it, though I understand there is some variability in how much heat and how long.
I haven’t looked at this in a while, but that was the last time I looked at it in six months or so.
Maybe summer in AZ is the answer.
:)