select_day

# File actionview/lib/action_view/helpers/date_helper.rb, line 811
      def select_day
        if @options[:use_hidden] || @options[:discard_day]
          build_hidden(:day, day || 1)
        else
          build_options_and_select(:day, day, start: 1, end: 31, leading_zeros: false, use_two_digit_numbers: @options[:use_two_digit_numbers])
        end