Quote Originally Posted by Emperor Umeu 1
well when you sally a city it could end up neither of you can win. so without any timer you'll have to send your men to death, without any good reason.
Not true. If you leave the gates, and then go back inside it seems to count as a successful sally. So you get a draw that way. (It has been so in all of my cases there has been some form of combat, not necessarily decisive combat.) But you have to get every single person back within the walls before you end the battle, or else it will be a defeat.

The advantages of not having the timer massively outweigh the disadvantages from having a timer.