Including the start and end dates in the calculation, there are 244 days between the two dates.
180 days after July 17th 2010 is Thursday, January 13, 2011.
The 14th of September is 120 days after the 17th of May. In a standard year, the 17th of January is 120 before it and in a leap year the 18th of January is 120 days before it.
Adding 260 days to January 4, 2011 gives September 21, 2011.
As today is January 23, 2011 there are 249 days until 29 September, 2011.
246 days.
270 days.
Tuesday, January 3rd, 2012 is 120 days after September 5th, 2011.
63 days.
31st January 2013
Thursday, January 27, 2011 is 120 days after September 29 2010.
Saturday, December 1st, 2012 is 75 days after September 17th, 2012.
January 20, 2012