January 1 1979 was on a Monday.
October 1 1979 was on a Monday.
September 1 1979 was on a Saturday.
September 1 1979 was a Saturday.
Sunday
Thursday.
Friday
Wednesday
1 January 1986 was a Wednesday.
1 January 1980 was a Tuesday.
1 January 1989 was a Sunday.
January 1 1974 was a Tuesday.
1 January 2006 was a Sunday.