This question was inspired by the episode "Song of the Petalars": If you knew that your life span was only twenty-four hours long, what things would you want to do?
To the Petalars though didn't it feel much longer than 24 hours? When Liono-O was gone for a short while, Emmet would say he had been gone for a long time. So Liono-O saw Emmets life pass by in a day, but Emmet had a full long life from his perspective.
Yes, very true. In the case of the petelars they would not view it any differently than we view our own lifetime.