Today it is Starwood Preferred Guest’s turn to announce their category changes. These changes will go into effect on March 6, 2018, which means that as long as you make your future award bookings before then you can book at the current award rates as far as the calendar will allow. Speaking of, I am very sad (though not surprised) that SPG is also changing how far in advance you can book from the current 550 days to just 350 days to align with the Marriott Rewards booking calendar. This calendar change will kick in very soon on February 11, 2018. This means you should lock in your (very) far out reservations ASAP. The SPG booking window currently goes through mid-August 2019, but after this change takes place it will only extend until early 2019.LEARN MORE!