A user located in São Paulo/Brasil is on the UTC-3 timezone. As I write this post it is actually UTC-2 because of daylight saving time.
That means that records created today will have the value of the current hour plus two. User saves a record at 9 AM, then on the database the value is of 11 AM.
After DST ends, the value will remain as 11 on the database. But what value will the user see when they check the "created at" date on the record page? 8AM is the technically correct value for the current timezone, but the record was created on DST, at 9 AM. Will they see 8 or 9 on the record page?