It was a Monday.
June 9, 1977 was a Thursday.
Friday
it was a Tuesday
December 9th, 1977 was on a Friday.
October 9th, 1977 fell on a Sunday.
May 9 was a Saturday
9 May 1945 was a Wednesday.
May 9 1950 was a Tuesday.
May 9 1947 was on a Friday.
May 9 1955 was on a Monday.
May 9 1920 was a Sunday.
May 9 2000 was a Tuesday.