Just keep on adding colleges into a cumulative list. Only add if you know for sure though. If you know the time, please write the time zone too (converted to IST if possible.)
I got this list from another thread, not sure about all though. Please keep updating this, or adding to it.
Amherst: 4/1/12 Decision notices sent out (electronically) on or about this date.
American: April 1st
Bard:April 1st
Barnard: Late March
Boston College: by April 15th [?] [2010: March 26]
Boston University: online notification April 15th [?] [2010: March 26]
Bowdoin College: Early April
Brandeis University:
Brown: March 29th after 5PM https://selfservice.brown.edu/ss/twbkwbis.P_WWWLogin
Bryn Mawr:
Bucknell:mail by USPS 3/24, online 3/28
Caltech: 3/20
Carleton College:
Carnegie Mellon: "March 15 - April 15"
Case Western: March 20
Claremont McKenna College: April 1 (Online)
Chicago, University of : [2010: March 19, 11 PM EST online]
Colgate: April 1 (through mail)
Colorado College: March 20
Columbia: late March/early April - decisions released on-line [assume 3/30, with the other Ivies]
Cornell: March 29th
Dartmouth: March 29th
Davidson: mailed Early Decision II by February 1, and for Regular Decision by April 1 (online access available two weeks before that? idk what this means)
Duke: online notification "late March" [2010: March 29 6 PM online]
Elon: Late January for fellows, March 15 for RD
Emory: April 1 via OPUS [2010: March 27th 12:00am via Opus account]
Florida State University: March 16th, online
Furman: March 15 RD
Georgetown: April 1 (Mail)
George Washington: Late March/Early April
Georgia Institute of Technology - March 20th
Grinnell: March 26th online 8am
Hampshire:
Harvard: notification by email after 5pm Eastern on March 29
Harvey Mudd: BY April 1
Haverford:
Johns Hopkins: Notification by email "during the last days of March" [2010: 3/31 7 PM EST]
Kenyon: Before April 1st by Mail
Macalester:
McGill: January 28th then rolling through March 29th
Middlebury:Mailed Friday, March 25, 2011 - Available on-line on Saturday, March 31, 2012 at 8:00am EST
MIT: 3/14 @ 1:59 PM EST [Online MIT account]
Mount Holyoke:April 1
Northeastern:Regular Decision deadline for freshmen; decisions released on-line by April February 15 (Priority consideration for Business)
Northwestern: [2010: 3/25 4 PM]
Notre Dame: Mailed First week of April
NYU: April 1
Oberlin: April 1
Occidental:Late March
Pitzer:April 1-Admission decisions sent by postal mail
Pomona: April 5
Princeton: March 30 https://notify.princeton.edu/uad/
Reed:
Rice: [2010: 3/28]
RPI: March 10
Scripps:
Skidmore:
Smith:
Stanford: April 1st [Email, Generally releases Friday prior to 4/1, check previous years.]
Swarthmore: [2010: most US mail letters arrived 3/27; some people got "accepted" letters as early as 3/14]
Trinity (CT): "Early April"
Tufts: April 1 (Online through TAMS portal)
UCB: March 29 (Online)
UCI: coming out in batches since 2/1, through end of March
UCLA: "Mid to Late March" [2010: 3/12 6 PM online]
UCM:
UCR: coming out in batches since 2/1, through end of March
UCSB: 3/21
UCSC:
UCSD: Mid-Late March
UGA:
UMass Amherst: "mailing begins in early March"
UMichigan: RD - rolling starting Feb 4
UNC: January 21 first deadline online; around April 1 second deadline
UPenn: March 29th, online notification [url]https://www.admissions.upenn.edu/decisions/mydecision.php
URichmond: RD April 1
USC: BY April 1 (Snail-Mail not in waves)-March 23 (2011)
UWisconsin: Rolling, all RD results out by the end of March.
UVA: April 1 (Online)
Vanderbilt: April 1 (Mail)
Vassar: "Around April 1"
Villanova:Late March
Wake Forest: ED rolling; RD April 1
Washington University in St. Louis: decisions mailed April 1 [2010: online 3/11]
Wellesley: Early Evaluation: February 22nd at 5pm EST
Wesleyan:"By April 1" (Online)
[/url][url]http://www.wesleyan.edu/admission/applying/online_decision_notification.html
William & Mary:
Williams: "By April 1"
WPI: April 1
Yale: March 29th, online notification[/url]
A bunch of people in the UCLA forum have mentioned it. Apparently last year the results came out on the second Friday of March (on the 11th) so they're assuming it'll follow the same pattern and come out on the 9th.
Replies to: Class of 2016 Regular Decision Notification Dates
Amherst: 4/1/12 Decision notices sent out (electronically) on or about this date.
American: April 1st
Bard:April 1st
Barnard: Late March
Boston College: by April 15th [?] [2010: March 26]
Boston University: online notification April 15th [?] [2010: March 26]
Bowdoin College: Early April
Brandeis University:
Brown: March 29th after 5PM
https://selfservice.brown.edu/ss/twbkwbis.P_WWWLogin
Bryn Mawr:
Bucknell:mail by USPS 3/24, online 3/28
Caltech: 3/20
Carleton College:
Carnegie Mellon: "March 15 - April 15"
Case Western: March 20
Claremont McKenna College: April 1 (Online)
Chicago, University of : [2010: March 19, 11 PM EST online]
Colgate: April 1 (through mail)
Colorado College: March 20
Columbia: late March/early April - decisions released on-line [assume 3/30, with the other Ivies]
Cornell: March 29th
Dartmouth: March 29th
Davidson: mailed Early Decision II by February 1, and for Regular Decision by April 1 (online access available two weeks before that? idk what this means)
Duke: online notification "late March" [2010: March 29 6 PM online]
Elon: Late January for fellows, March 15 for RD
Emory: April 1 via OPUS [2010: March 27th 12:00am via Opus account]
Florida State University: March 16th, online
Furman: March 15 RD
Georgetown: April 1 (Mail)
George Washington: Late March/Early April
Georgia Institute of Technology - March 20th
Grinnell: March 26th online 8am
Hampshire:
Harvard: notification by email after 5pm Eastern on March 29
Harvey Mudd: BY April 1
Haverford:
Johns Hopkins: Notification by email "during the last days of March" [2010: 3/31 7 PM EST]
Kenyon: Before April 1st by Mail
Macalester:
McGill: January 28th then rolling through March 29th
Middlebury:Mailed Friday, March 25, 2011 - Available on-line on Saturday, March 31, 2012 at 8:00am EST
MIT: 3/14 @ 1:59 PM EST [Online MIT account]
Mount Holyoke:April 1
Northeastern:Regular Decision deadline for freshmen; decisions released on-line by April February 15 (Priority consideration for Business)
Northwestern: [2010: 3/25 4 PM]
Notre Dame: Mailed First week of April
NYU: April 1
Oberlin: April 1
Occidental:Late March
Pitzer:April 1-Admission decisions sent by postal mail
Pomona: April 5
Princeton: March 30
https://notify.princeton.edu/uad/
Reed:
Rice: [2010: 3/28]
RPI: March 10
Scripps:
Skidmore:
Smith:
Stanford: April 1st [Email, Generally releases Friday prior to 4/1, check previous years.]
Swarthmore: [2010: most US mail letters arrived 3/27; some people got "accepted" letters as early as 3/14]
Trinity (CT): "Early April"
Tufts: April 1 (Online through TAMS portal)
UCB: March 29 (Online)
UCI: coming out in batches since 2/1, through end of March
UCLA: "Mid to Late March" [2010: 3/12 6 PM online]
UCM:
UCR: coming out in batches since 2/1, through end of March
UCSB: 3/21
UCSC:
UCSD: Mid-Late March
UGA:
UMass Amherst: "mailing begins in early March"
UMichigan: RD - rolling starting Feb 4
UNC: January 21 first deadline online; around April 1 second deadline
UPenn: March 29th, online notification [url]https://www.admissions.upenn.edu/decisions/mydecision.php
URichmond: RD April 1
USC: BY April 1 (Snail-Mail not in waves)-March 23 (2011)
UWisconsin: Rolling, all RD results out by the end of March.
UVA: April 1 (Online)
Vanderbilt: April 1 (Mail)
Vassar: "Around April 1"
Villanova:Late March
Wake Forest: ED rolling; RD April 1
Washington University in St. Louis: decisions mailed April 1 [2010: online 3/11]
Wellesley: Early Evaluation: February 22nd at 5pm EST
Wesleyan:"By April 1" (Online)
[/url][url]http://www.wesleyan.edu/admission/applying/online_decision_notification.html
William & Mary:
Williams: "By April 1"
WPI: April 1
Yale: March 29th, online notification[/url]
Update: Georgia Institute of Technology: 10th March 2012
I have a letter from Harvard that puts it on March 29th, 5PM EST.
So, if there is indeed a common-notif clause...we'll get all our ivy-decisions in a batch on 29th, 5PM? Which is 30th, 3:30-ish for us in India.
Princeton University | Application Dates & Deadlines
Princeton says March 30.
Harvard College Admissions § Applying: Email Notification of Decisions
Harvard says March 29 and goes on to say 0530PM EST as well.
So...Common Notification Date?
These are the one's I'm sure of. Add the ones you're sure of...
MIT:
15th March,0030
Harvard:
March 30,0330
Common Ivy League Agreement
http://www.princeton.edu/admission/pdfs/0708_ivy.pdf
Clause 4 in both.
One of Harvard or Princeton will most likely change their date.