Current processing is about ten months to one year in most parts of the country because the president decided that all cases must be interviewed. This has been a colossal waste of time as the only issue is to prove the relationship and the security questions (which generally are none). I have been to half a dozen parent interviews this year and they are very quick - maybe 15u201320 minutes. Some USCIS District Directors have agreed to still waive the interviews, but this is not a national policy.