December 9 1970 fell on a Wednesday
June 9, 1970 fell on a Tuesday.
January 9, 1970 fell on a Friday.
October 9, 1970 fell on a Friday.
December 9, 2007 was a Sunday.
December 9 1951 was a Sunday.
December 9 2010 was a Thursday.
Friday
Monday
December 9 1963 was a Monday.
9 December 1979 was a Sunday.
December 9, 1964 fell on a Wednesday.
December 9, 1990 was a Sunday.