You're not dumb. I don't see specific dates and times for shows yet. Having said that, I think the EMF has ALWAYS been during the Fourth of July weekend. At least that's been the case since I've been old enough to go. It's July 4-7, 2019 this year.

Edited to add: Ohh, I just saw Big Daddy Kane and Force MD's is 'gon be there. Luckily, they're in the "Superlounges" and not on the Superdome Main Stage. I just peeped the prices for good seats for the Main Stage performances and I almost fainted. ;-(

I still want to go, though. I love NOLA and I haven't been in a few years.