100 days after Friday, February 12, 2010 = Sunday, May 23, 2010.
Monday the 25th of October 2010 is 100 days before it. Friday the 13th of May 2011 is 100 days after it.
The 31st of July 2010 is 100 days after the 22nd of April 2010. The 12th of January 2010 is 100 days before the 22nd of April 2010.
Friday the 4th of June 2010.
280 days before it was the 8th of February 2010. 280 days after it was the 22nd of August 2011.
Today (10 Nov 2009) plus 100 days = 18 Feb 2010
The 143rd day in 2010 is the 23 May. 31 days in January 28 days in February 31 days in March 30 days in April 120 leaving 23 days needed in May.
The 5th of November 2011.
Adding 123 days to October 9, 2010 gives February 9, 2011.
It would fall on February 7 2011.
Adding 100 days to September 6 in any year gives December 15 in the same year.
As today is January 27, 2010 there are 15 days until February 11, 2010.
February 14, 2010 is a Sunday