to_yaml

# File activesupport/lib/active_support/time_with_zone.rb, line 114
    def to_yaml(options = {})
      if options.kind_of?(YAML::Emitter)
        utc.to_yaml(options)
      else
        time.to_yaml(options).gsub('Z', formatted_offset(true, 'Z'))
      end
    end