The day of the week that May 1, 1977 fell on was a Sunday.
It was a Monday.
Labor Day in 1984 fell on September 3.
Labor Day was Monday, September 5 in 1977. It is always the first Monday of September. That was set by law and does not change.
I got my drivers license on that day in 1977 and it was a Thursday.
It was a Tuesday. That happens to be the day I was born; my mother was in labor on Labor Day.
Usually the week of Labor Day. If Labor Day is a Friday, then the Monday after that.
18 April 1977 was a Monday.
26 February 1977 was a Saturday.
February 1, 1977 was a Tuesday.
24 February 1977 was a Thursday.
19 October 1977 was a Wednesday.