Năm 1986 có bao nhiêu ngày Thứ 4

1/1/1986 8/1/1986 15/1/1986 22/1/1986 29/1/1986 5/2/1986 12/2/1986 19/2/1986 26/2/1986 5/3/1986 12/3/1986 19/3/1986 26/3/1986 2/4/1986 9/4/1986 16/4/1986 23/4/1986 30/4/1986 7/5/1986 14/5/1986 21/5/1986 28/5/1986 4/6/1986 11/6/1986 18/6/1986 25/6/1986 2/7/1986 9/7/1986 16/7/1986 23/7/1986 30/7/1986 6/8/1986 13/8/1986 20/8/1986 27/8/1986 3/9/1986 10/9/1986 17/9/1986 24/9/1986 1/10/1986 8/10/1986 15/10/1986 22/10/1986 29/10/1986 5/11/1986 12/11/1986 19/11/1986 26/11/1986 3/12/1986 10/12/1986 17/12/1986 24/12/1986 31/12/1986