Yeah, it's time to think about this again. This year's Comic-Con International convenes in San Diego with a Preview Night on July 20 and then the non-Preview part is July 21-24. But you won't be there for any of it if you don't get a badge so be aware that open registration for them is a week from tomorrow. It will start and mostly stop the morning of Saturday, February 20.
If you want to score one or more badges, you have to be at your computer that morn. Before that, read this page which will tell you all about the process. And don't complain to me that you don't like the process. I have nothing to do with it. I just moderate panels.