It's for the 20th.
Our county used to send the summons about a week before the alotted time, so what's up with this more than a month advance?
I know I'm going to misplace my summons and forget to call before-hand to see if I am to show up (I always have to show up). And if I put it in a place where I see it all the time, it's just going to be like a little sign that you see once, and forget about.
I'm screwed either way.