Hm. It shouldn’t be too hard to add something to models to make them do that, right? I guess for that they would need to know the user’s time zone?
Can one typically determine a user’s timezone in JavaScript without getting permissions? I feel like probably yes?
(I’m not imagining something that would strictly cut the user off, just something that would end messages with a suggestion to go to bed, and saying that it will be there in the morning.)