I'm wondering how long a double chin lifting procedure takes!

It’s not like I’ve gained a lot of weight, but whenever I lower my head even slightly, it looks like a double chin, and when I take selfies with friends, I find myself constantly trying to find the right angle for my jaw. So lately, while looking into dermatological procedures, I learned about double chin lifting.

Since I have almost no experience with procedures, what I'm most curious about is the treatment time. How long does a double chin lift actually take? I'm wondering if the procedure itself finishes quickly, or if it takes quite a while considering the consultation, preparation, and aftercare. I'd also like to know if I can get it done briefly between classes, or if I need to set aside a whole day for it.

I'm also wondering if it's okay to go to an appointment right after getting a double chin lift. If the swelling or bruising is noticeable, I think I'll have to schedule a day off. If anyone has had a double chin lift before, please let me know approximately how long it took from entering the clinic to leaving! I'm a bit scared since it's my first time, but if the procedure is quick, I'd like to get a consultation first.