Counting from December 1, 2011, adding 90 days to this date gives February 29, 2012.
What date is 90 days before December 25 2012
The date which falls 90 days after December 4, 2010 is March 4, 2011.
Monday the 5th of December 2011 is 90 days and the 6th of September 2011.
Sunday the 4th of December 2011 is 90 days and the 5th of September 2011.
March 27, 2012
1st March 2012
The date which falls 90 days after February 2, 2011 is May 3, 2011.
90 days after December 1st is Tuesday, March 1, 2011.
90 days after Tuesday, December 28, 2010 = Monday, March 28, 2011.
Adding 90 days to December 23, 2010 gives March 23, 2011.
30 days after November 24, 2010 is Friday, December 24, 2010.
Subtracting 90 days from April 15, 2011 gives January 15, 2011.