Quote Originally Posted by Yora View Post
Wandering monsters could also be checked every 120 feet of movement. Which you have to track anyway to know when a turn has passed. That's why I was wondering, not considering that spells have durations measured in turns.
But things apart from movement cause time to pass, and how careful you're being impacts your movement rate. There's a definite tension between "go fast and potentially stir up trouble/traps" and "go slow and get hit by random monsters".