12th May 1980 was a Monday.
November 12th, 1980 fell on a Wednesday.
April 12, 1980 fell on a Saturday.
May 12th 1964 was a Tuesday.
May 12th, 1951 fell on a Saturday.
May 12th, 2007 fell on a Saturday.
It was a Tuesday.
It was a Thursday.
Sunday (Mothers' Day)
12th May 1937 was a Wednesday.
May 12, 1943 was a Wednesday.
May 30, 1980 was a Friday.
15 May 1980 was a Thursday.