# File lib/timeliness/helpers.rb, line 4
    def full_hour(hour, meridian)
      hour = hour.to_i
      return hour if meridian.nil?
      if meridian.delete('.').downcase == 'am'
        raise(ArgumentError) if hour == 0 || hour > 12
        hour == 12 ? 0 : hour
      else
        hour == 12 ? hour : hour + 12
      end
    end