Alright, I figured we'd further discuss time limit options here to not muddy up the game forum and to keep it separate. I'll tag those that are already involved in the thought process. I personally don't want my views interpreted in the game, as they are very distinct in discussing game mechanics, and not the game at hand.
In general, I think the pace of a game (and an according time limit) is something each group needs to agree on before the game begins.
I think 24 hours will work for this group though, that's the pace we've been playing so far, and it's working.