Employment Based Greencard

May 12 2017 - PD (I-140/131/765/485) Applied.
June 13 2017 - Bio-metrics Appointment for EAD
August 31 2017 - Received EAD through Mail.
October 05 2017 - I-140 Approved
October 17 2017 - I-485 Case Transfered Notice to NBC.
November 27 2017 - Initial Interview Notice.
Jan 05 2018 - Interview Completed & I-485 Staus Changed to Card Being Produced.
Jan 12 2018 - Received GC through Mail.
Jan 16 2018 - Received I-485 Approval letter.

My I-131 Online Status (Case was Received ) till now and I-140 Online status didn't Change.

Medicals was expired (Oct-17) No RFE Received.Have taken New Medicals for the Interview.
AO Asked New Medicals during Interview.

Interview Details:

Me and Dependents had Interview Appointment time 1 after other.
AO asked everyone to come Together , and asked to take Oath.
Verified Birth Certficate for Everyone.
Marriage Certicate for my Spouse.
Verfied whether everyone of us has lived in US legally with I-797.
He has some Questions reg my Wages (Provided Employer Letter / Supplement-J and 3 months Pay Slip).
He asked for New Medicals - Verified it On the fly.
Last he told , he want to do some bacgroud check and will be approving on Same day or Next Day.
I-485 Status Changed Same day.

Hope this helps for understanding the Timelines.

Each AO is different and you may get different questions . But this might help.

Thanks for all who has shared the information's.