They're gradually pushing the time period back, as of a couple days ago I believe it was end of May. As of right now it's for "stays and Airbnb Experiences made on or before March 14, 2020, with a check-in date between March 14, 2020 and June 15, 2020"

Of course, events as far out as late July are cancelled due to COVID-19

https://www.airbnb.com/help/article/2701/extenuating-circums...

Additionally, this policy has been modified since COVID arose to only apply to 1.5 months out.

In the past, and in fact when I booked my airbnb (late last year), extenuating circumstances would have easily covered an epidemic 2 months out.

Mine is late June / Early July in Italy of all places, and is not covered. They keep extending the coverage period though so I'm crossing my fingers.