I sent mine january 26 and it expires April 18, so a little less than 3 months.
__________________
Application sent:
9/6/12 Application Received:
9/10/12
Biometrics walk in
9/24/12
Waiting:
7 months + 9 days
Approved:
4/19/13
EAD:
4/25/13. SSN:5/3/13 DL:5/15/13