3859 days.
January 9, 2011 + 180 days = July 8, 2011.
Adding 180 days to January 24, 2011 gives July 23, 2011.
Adding 179 days to January 18, 2011 gives July 16, 2011.
Adding 180 days to January 13, 2011 gives July 12, 2011.
Adding 180 days to July 18, 2011 gives January 14, 2012.
194 days.
Including the start and end date in the calculation, there are 184 days between July 1, 2010 and January 1, 2011.
180 days after July 17th 2010 is Thursday, January 13, 2011.
Adding 180 days to January 11, 2011 gives July 10, 2011.
180 days after July 8 2010 would be on January 4 2011.
Adding 180 days to July 28, 2010 gives January 24, 2011.
January 11, 2012