class Chronic::RepeaterDayName

def next(pointer)
  super
  direction = pointer == :future ? 1 : -1
  if !@current_day_start
    @current_day_start = Time.construct(@now.year, @now.month, @now.day)
    @current_day_start += direction * DAY_SECONDS
    day_num = symbol_to_number(@type)
    while @current_day_start.wday != day_num
      @current_day_start += direction * DAY_SECONDS
    end
  else
    @current_day_start += direction * 7 * DAY_SECONDS
  end
  Chronic::Span.new(@current_day_start, @current_day_start + DAY_SECONDS)
end