I was playing the Library on legendary and died a few times then at the last door leading to the index, I died so many times, thought I spent more than 30 minutes, save and quit, tried again later, finished the level, and got the achievement. So I was wondering, does the timer reset when you save and quit and go back later, or did I just misjudge the amount of time I spent.
No, it counts the time between your checkpoints. so if you die, it will reset your time to the checkpoint that you respawned at.
example: You get a checkpoint at 5 minutes and 6 seconds, you die at 6 minutes and 23 seconds, you will respawn at your previous checkpoint with the regular time at that checkpoint; 5 minutes and 6 seconds.
If you still don’t get it maybe i’m just bad at explaining things…