February 20 1972 was on a Sunday.
October 20, 1972 fell on a Friday.
January 20 1949 was on a Thursday.
January 20, 2009 was on a Tuesday.
January 20 1933 was a Friday.
January 20 1967 was a Friday.
January 20 2010 was a Wednesday.
January 20, 1987 was a Tuesday.
January 20, 1957 was a Sunday.
January 20, 1969 was a Monday.
20 January 2004 was a Tuesday.
20 January 1980 was a Sunday.