In role Dateish§

See primary documentation in context for method day-of-year

method day-of-year(Date:D: --> Int:D)

Returns the day of the year (1..366).

say Date.new('2015-12-31').day-of-year;                                  # OUTPUT: «365␤» 
say DateTime.new(date => Date.new('2015-03-24'), hour => 1).day-of-year# OUTPUT: «83␤»