We filed a Marriage Based Adjustment of Status petition with USCIS on December 5th, 2017 and received the final approval notices on March 9th, 2018: USCIS Filing Date: December 5th, 2017 Received I-130 and I-485 Approval Notices on March 9th, 2018 Processing time from Filing with USCIS to Approval: 3 months, 4 days. I-485: MSC-18-903-40058
Source: h1b now