283 days
Subtracting 276 days from March 24, 2012 gives June 22, 2011.
269 days.
There were 89 days between the 22nd of March 2011 and the 19th of June 2011.
90 days after March 13, 2011 would be June 11, 2011.
38 weeks and 4 days before the 13th of March 2012 was Friday the 17th of June 2011.
March 13, 2012 is 366 days after March 13, 2011 (I believe you forgot to count February 29, 2012).
Adding 90 days to March 29, 2011 gives June 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.
Stella Days - 2011 was released on: South Korea: 9 October 2011 (Pusan International Film Festival) Ireland: 9 March 2012 USA: April 2012 (Newport Beach International Film Festival) USA: 14 June 2012 (Provincetown International Film Festival) USA: 22 June 2012
91 days in total
Subtracting 272 days from March 29, 2011 gives June 30, 2010.