The darkest evening of the year.
A superficial reading of this line suggests that Frost is talking about the winter solstice here, but upon closer examination this line has darker connotations…
The darkest evening of the year could be a subjective opinion of the narrator. Perhaps he has something negative weighing down his thoughts.
To help improve the meaning of these lyrics, visit “Stopping By Woods On A Snowy Evening” by Robert Frost and leave a comment on the lyrics box