Hey there,

is it possible to somehow keep track of how much time has passed in a quester profile?

Use relogger. 

It tracks that kinda stuff.

Sorry, might have stated that wrong. I'd like to keep track of time wihtin a quester profile, like getting start time at the beginning of the profile, then doing stuff and checking at the end how much time has passed. 

Var.SetVar("startTime", Datetime.Now);