The Eidul Adha 1433 is on Friday, October 26, 2012.
The Astronomical New Moon is on October 15, 2012 (Monday) at 12:02 UT. October 17, 2012 (Wednesday) is the 1st day of Dhul Hijjah 1433. The day of Arafah - the main day of Hajj - is on Thursday, October 25, 2012 and so the Eidul Adha 1433 is on Friday, October 26, 2012. The Hajj authorities in Makkah have confirmed that the Day of Arafah will be on Thursday, October 25, 2012.
Eidul Adha Mubarak.
For more information on the Eid al-Adha Announcement from the Fiqh Council click HERE.