In Date§

See primary documentation in context for sub infix:<->

multi infix:<-> (Date:D, Int:D --> Date:D)
multi infix:<-> (Date:D, Date:D --> Int:D)

Takes a date to subtract from and either an Int, representing the number of days to subtract, or another Date object. Returns a new Date object or the number of days between the two dates, respectively.

say Date.new('2016-12-25') - Date.new('2016-12-24'); # OUTPUT: «1␤» 
say Date.new('2015-12-25') - Date.new('2016-11-21'); # OUTPUT: «-332␤» 
say Date.new('2016-11-21') - 332;                    # OUTPUT: «2015-12-25␤»

In DateTime§

See primary documentation in context for sub infix:<->

multi infix:<-> (DateTime:D, Duration:D --> DateTime:D)
multi infix:<-> (DateTime:D, DateTime:D --> Duration:D)

Takes a DateTime to subtract from and either a Duration or another DateTime object. Returns a new DateTime object or the Duration between the two dates, respectively. When subtracting Duration, time zone of the original DateTime is preserved in the returned DateTime object.

say raku DateTime.new(:2016year) - DateTime.new(:2015year):;
# OUTPUT: «Duration.new(31536001.0)␤» 
say DateTime.new(:2016year, :3600timezone) - Duration.new(31536001.0);
# OUTPUT: «2015-01-01T00:00:00+01:00␤»

In Range§

See primary documentation in context for sub infix:<->

multi infix:<->(Range:D \r, Real:D \v)

Takes a Real and subtract that number to both boundaries of the Range object. Be careful with the use of parenthesis.

say (1..2) - 1; # OUTPUT: «0..1␤» 
say 1..2 - 1;   # OUTPUT: «1..1␤»