January 1, 1988 fell on a Friday.
January 1, 1988 was a Friday.
January 28, 1988 was a Thursday January 28, 1888 was a Saturday
If you are referring to January 7th, 1988, it fell on a Thursday. The following year January 7th, fell on a Saturday.
February 1 1988 was a Monday.
January 1, 1988 fell on a Friday.
March 1, 1988 fell on a Tuesday.
August 1, 1988 fell on a Monday.
1 January 1986 was a Wednesday.
1 January 1989 was a Sunday.
January 1 1974 was a Tuesday.
1 January 2005 was a Saturday.
1 January 2017 will be a Sunday.