f2435cc8-cf44-11ee-a506-0242ac120002

https://www.visahq.com/united-states/how-long-can-we-stay-in-us-with-b1-b2-visa
Even though you're allowed to stay for up to 6 months, it's probably not a good idea to stay longer than a month, because they'll assume you're working there which will make it harder for you in the renewal stage.