# File MutableTime.rb, line 441
        def month=(m)
                m-=1 unless @@zMonth 
                y=m/12
                m%=12
                m+=1 unless @@zMonth 
                locals = @t.to_a[0..5].reverse!
                locals[0]+= y;
                locals[1] = m;
                @t=self.class.local(*locals).t
        end