SPG has quite a few different discount options available and one of the less advertised ones is the Beat The Timer.
There are number of hotels available on a rolling 72 hours period or until the inventory reserved for this discounted rate code has been exhausted. There is no rhyme what is offered and when. You probably should glance the available hotels every few days to see if any of the locations that you are planning to visit in the next three months is on the list.
Note that these discounted rates are prepaid, non-refundable and non-cancellable.
You can also use the map option to see the countries where the current offers are available.
When you choose the hotel and the dates, you are then presented the dates when the discounted rate is available during three month period.
After you choose the dates, you are then connected to the brand specific website. The interface auto populates the SET code 387696 that is used to bring up the rates.
This is one of the SPG’s rate promotions that you should check frequently. The other one is Starpicks that is usually available on every Tuesday morning (USA time). Hotels use both of these rate plans to discount their near term inventory. Just to reminder that these rates are prepaid and non-refundable. Only book them IF your plans are firm.