1 January 1980 was a Tuesday.
1 March 1980 was a Saturday.
November 1, 1980 fell on a Saturday.
September 1, 1980 fell on a Monday.
Thursday
It was a Sunday.
Tuesday
Thursday.
January 1 1974 was a Tuesday.
1 January 1994 was a Saturday.
1 January 1975 was a Wednesday.
January 1 2010 will be a Friday.
January 1, 1959 was a Thursday.