Free Comic Book Day is usually held annually on the first Saturday of May, but this year it was rescheduled due to COVID-19 and will be from July 15 to September 9.

https://www.freecomicbookday.com/Art...gh-September-9
https://www.freecomicbookday.com/StoreLocator
https://en.wikipedia.org/wiki/Free_Comic_Book_Day