January 27, 2010 + 100 days = May 7, 2010.
February 14, 2010 + 100 days = May 25, 2010.
In any given year, the date 100 days before February 1 is October 24 of the previous year.
100 days after October 22, 2012 is January 30, 2013.
100 days before Monday, May 3rd, 2010 = Saturday, January 23, 2010.
Adding 100 days to February 14, 2009 gives May 25, 2009.
100 days after Feb. 1 is May 11 in leap years and May 12 in regular years.
Subtracting 100 days from May 7, 2011 gives January 27, 2011.
100 days before June 24th 2011 will be Wednesday, March 16, 2011.
Adding 100 days to March 18, 2011 gives June 26, 2011.
Friday, November 25th, 2011 was 100 days before March 4th, 2012.
100 days before the 1st of May is the 21st of January in a normal year and the 22nd of January in a leap year. 100 days after the 1st of May is the 9th of August.