Sunday
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.
Thursday.
Friday
Wednesday
April 1 1967 was a Saturday.
April 1 1977 was on a Friday.
April 1, 1981 was on a Wednesday.
April 1 2000 was on a Saturday.
April 1 , 2011 was a Thursday.