May 12 2012 is a Saturday.
May 12, 2012 will fall on a Saturday.
Thursday was the day of the week of May 12, 1983
September 12, 2012 was a Wednesday.
Wednesday
It will be on a Wednesday.
It was a Monday.
MONDAY
On a Friday
It was a Wednesday.
September 12th, 2012 fell on a Wednesday.
12 May 1961 was a Friday.
12 May 1898 was a Thursday.