It was a Friday.
Wednesday
Saturday
It was a Monday.
December 20th, 1968 fell on a Friday.
September 20th, 1981 was a Sunday.
On June 20th of 1968, the day was Thursday :)
It was a Thursday.
April 20th 1968 was a Saturday.
September 17th, 1968 fell on a Tuesday.
September 20th, 1954 fell on a Monday. The following year, it fell on a Tuesday.
24th Sept 1985 was a Tuesday.
Sept. 26 1997 was a Friday.