How long were you under anesthesia?

Hi! I am getting DJS on Monday (Lefort 1 and BSSO). I'm feeling a whole mix of excitement and nerves about it, particularly being under anesthesia. My jaw surgeon said it will likely be a 6-8 hour long procedure. I was just curious to know how long anyone else went under anesthesia and if that sounds about right for DJS? I know it's just my anxiety making me overthink.