Why doesn't plain Ruby code work?

Question

ruby

Started reading Ruby book, first listing if gives error "undefined method `saturday' for Sat Aug 30 19:23:32 +0300 2014:Time (NoMethodError)" code below

today = Time.now

if today.monday?
  puts "123"
elsif today.sunday?
  puts "relax"
else
  puts "Go work"
end

Answer 1

Working code.
By mistake, you changed monday to saturday and forgot to put a "?"