Saturday
The day of the week that May 1, 1977 fell on was a Sunday.
February 1, 1977 was a Tuesday.
1 December 1977 was a Thursday.
September 1 1977 was on a Thursday.
April 1 1977 was on a Friday.
March 1 1977 was a Tuesday.
Friday
Thursday
January 1st, 1977, was a Saturday.
1 October 1983 was a Saturday.
1 October 1934 was a Monday.
1 October 1946 was a Tuesday.