That date can be interpreted in two ways. The 7th of January 1986 was a Tuesday. July the 1st 1986 was also a Tuesday.
March 1, 1986 was a Saturday.
October 1 1986 was on a Wednesday.
August 1, 1986 fell on a Friday.
May 1, 1986 fell on a Thursday.
December 1, 1986 was a Monday.
January 1 2010 will be a Friday.
January 1 1974 was a Tuesday.
1 January 1994 was a Saturday.
1 January 1975 was a Wednesday.
January 1, 1959 was a Thursday.
January 1 2010 was a Friday.