It was a Monday.
April 4, 1977 was on a Monday.
Monday
June 4 1977 was on a Saturday.
September 4, 1977 fell on a Sunday.
4-6-2001 was in the first week of April. The day was Friday, April 6th.
Tuesday
Friday
It was a Friday.
Sunday.
4 April 1995 was a Tuesday.
April 4 1985 was on a Thursday.
4 April 1964 was a Saturday.