Saturday, October 8th - the second Saturday in October. Whenever you like, however you like, wherever you like.  There's no set time or place on October 15th; do what you want, and what works for you. If it's at a venue it'll almost certainly need to be more planned out and formal. If you're gonna hang out on your porch and play you can do it whenever you like.

Whenever and wherever you like is the right time
and place for Local Original Music Day.