I have only played a couple of hours, but I have noticed that after each battle, the evaluation includes "surviving" charcters as well as turns used compared to a predefined limit. However, I have not found any place this turn limit is displayed until AFTER the battle, so how can I know while fighting how many turns are left (I can only see how many turns I have used).

Or am I supposed to always rush to be safe, with the time liming being unknown just increasing the tension?