From the detailed terms & conditions:
This Code is valid November 25, 2024 – December 2, 2024 and is subject to early termination (the “Redemption Period”). Code becomes void once redeemed or expired and must be redeemed by the last date of the Redemption Period.
My take is no, you cannot defer the start date or wait until later.
FWIW, I created a new account for my wife and used that to sign up. It will overlap a couple of months until mine expires in mid-January, but this still seemed like a good deal.