A. In the United States, the Marine Mammal Protection Act (“MMPA”) is the predominant federal law that governs swim-with dolphin encounters.
What this tells you is that a bat has a very good opportunity to live to be as much as 15 or 20 years old if it were to live in or directly around your home. If there are rodents or large insects for it to eat, and it has a safe place to live in, like in your attic, then it can stay there for years without issue.
Anyway, in the settings for the Clock app, you can specify the “Auto silent time” for each particular alarm … between 5 and 30 minutes in 5 minute increments.