require 'time'

Time.class_eval { 
  @@advance_one_day = false
  cattr_accessor :advance_one_day

  class << Time
    alias now_old now
    def now
      if Time.advance_one_day
        return Time.at(now_old.to_i + 60 * 60 * 24 + 1)
      else
        now_old
      end
    end
  end
}