Hi @makeawish,
Basically a TTL less than 30 days (in seconds) is relative but after that it becomes absolute - yet it can get much more complicated with a TTL on a bucket. I believe you are setting the TTL about 50 years in the past.
Please read Expiration or TTL ... second or millisecond - #7 by jon.strabala and see if that answers your questions ( and directs you to the proper documentation).
Best
Jon Strabala