May 17 in leap years
May 18 in regular years
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.
Adding 100 days to February 14, 2009 gives May 25, 2009.
Adding 100 days to March 18, 2011 gives June 26, 2011.
The 29th of October 2011.
100 days after Feb. 1 is May 11 in leap years and May 12 in regular years.
Adding 100 days to February 6 in a non leap year gives May 17. Adding 100 days to February 6 in a leap year gives May 16.
100 days after Friday, February 12, 2010 = Sunday, May 23, 2010.
January 27, 2010 + 100 days = May 7, 2010.
Monday the 25th of October 2010 is 100 days before it. Friday the 13th of May 2011 is 100 days after it.
As of today's date, August 17, 2010, there are 257 days until May 1, 2011.
Adding 100 days to November 12 gives February 20 of the following year.