How long is it okay for a pacific parrotlet to be by themselves?

by Morgan
(Las Vegas)

So, I recently moved into my first apratment. All of my life I have lived on a farm and had dogs, cats, rabbits, chickens, horses, you name it, and I've probably had it. I live by myself now and I'm not not home about 9 hours a day/6 days a week. I've always been fond of the sun conures but I know that they are noisy and I don't not want something that will screma all the time. (I don't want my neighbors to hate me) It was suggested that I look into getting a parrrotlet. I've heard that birds will become mean if they are left by themselves for long periods of time. So would it be okay for my parettolet to be by him/herself 9 or so hours a day?