Use Response Time Settings when each respondent must finish the entire survey within a fixed duration. A countdown shows remaining time from the moment they start the form. If they do not submit before time expires, the attempt can be treated as incomplete rather than a full valid completion.
This differs from scheduling and auto-close rules (open/close windows or caps on total responses). Pair timers with Testing the survey and quiz flows so limits feel fair on mobile and desktop.
Choosing a realistic limit matters: if the cap is too short, people skip questions and response quality drops; if it is too long, you lose the benefit of a controlled session. Pilot with teammates before high-stakes launches.



