September 15, 1992 was a Tuesday.
Sunday
Thursday
Tuesday
Monday
It was a Thursday.
April 15, 1992 was a wednesday.
May 15, 1992 fell on a Friday.
August 15 1992 was on a Saturday.
October 15, 1992 fell on a Thursday.
Tuesday
It was a Wednesday.
At some time or other, the 15th of September has been on all seven days of the week. It depends on which particular year it is.