Your survey can be set to automatically close at a pre-set time and date in the future.
Your cutoff time must be entered in GMT or UTC time (+0000). You must also use the 24-hour format. For example, 3pm would be entered as 15:00
NOTE: The survey will not automatically appear "Closed" in the collect tab at the exact instant of the selected time and date. Instead, the survey will be set to close when the first person tries to access it after the time passes. For surveys with a very low rate of responses, this may cause a survey to appear to still be open some time after the time and date passes - however it will always be impossible for someone to respond to the survey after the set time and date.