After it has been at least 30 days from the interview, preferably 60.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.
I agree with 30 to 60 days. Here is the USCIS link to check your case status. https://egov.uscis.gov/cris/Dashboard/CaseStatus.do
Yes, it's only been a day. You've waited this long. Be patient. Give it a rest. Even if you were told it was approved at your interview you wouldn't have walked out the door with anything in hand. If you don't hear something in 60 days then consider following up.
While this answer is provided by a Florida Bar Certified Expert in Immigration and Nationality Law, it is for general information purposes only and an attorney/client relationship is neither intended nor created. You should seek out qualified counsel to review your case and provide you with advice specific to your situation. Call +1-561-478-5353 to schedule a consultation with Mr. Devore.
30 to 60 days is reasonable, I would not do much earlier than 30 (consider the amount of cases they deal with per week and consider you are dealing with a Government bureaucracy) but I would also not let it sit longer than 60 days. Based on your post(s), my guess is you will probably get an approval notice within a few weeks and the card not long after. West Palm Beach field office, to my knowledge, is no longer issuing I-551 stamps upon Adjustment of Status approval. So you will have to wait for the card.
William M. Cavanaugh Law Office of William M. Cavanaugh www.wmc-law.com (561) 283-2196 This posting does not create an attorney-client relationship and the answer is general in nature. You should contact an experienced Immigration attorney with the specific facts of your case.