Sunday
October 13 1981 was a Tuesday.
October 13, 1981 was on a Tuesday.
April 13, 1981 fell on a Monday.
December 13, 1981 fell on a Sunday.
13 September 1957 was a Friday.
September 13 1959 was on a Sunday.
September 13 1958 was on a Saturday.
September 13, 1985 was a Friday.
13 September 1995 was a Wednesday.
September 13 1980 was a Saturday.
September 13 1949 was on a Tuesday.
September 13 1979 was a Thursday.