July 20 1973 was a Friday.
June 20, 1973 was a Wednesday.
August 20 1973 was a Monday.
Monday
It was a Friday.
20 September 1999 was a Monday.
September 20 in 1969 was a Saturday.
September 20 1952 was a Saturday.
September 20 1951 was a Thursday.
20 September 1988 was on a Tuesday.
September 20, 1993 was on a Monday.
September 20 2010 was a Monday.