I don't know the answer to that one. You probably want to call them.
Depends on how busy they are. But you should be able to get an appointment as soon as you call and have it set for the next day. Spay and neuter is another great place to get a dog fixed. Good luck
Calling them would b a good idea. Since I live far away I'm not sure about times. Sorry.
I'm not sure at the Humane Society, (because I got my dog somewhere else), but when my dog got neutered they kept him for a few hours to watch him afterewards. It was about 5 hours.
You have to call them and make an appointment but I understand that they're booked out for a few months. If you Need an appointment sooner you can try spay and neuter their also a low cost vet
Thanks! Your answer is awaiting moderation.