May 21 2010 was a Friday.
21 April 2010 will be a Wednesday.
January 21 2010 was a Thursday.
February 21 2010 was a Sunday.
March 21 2010 was a Sunday.
April 21 2010 was a Wednesday.
June 21 2010 was a Monday.
July 21 2010 was a Wednesday.
September 21 2010 was a Tuesday.
October 21 2010 was a Thursday.
December 21 2010 was a Tuesday.
Sunday 16th May 2010 to Saturday 22nd May 2010.
Sunday