Hmm. I'd hate to advertise something and then have the wrong start time show up. (I'd be the one people scream at.)
Is it something that you could find out? Or maybe post in the Get Togethers forum for now and then add it to the calendar when you get all of the info?
I was going through the calendar by month and noticed that the Carranza Celebration was not listed. It is the second Saturday of July but I am not sure of the time. I was there last year and it was the last minute before I was told I was an hour early. So I have not idea the time.