You can change the automatic closing date of a survey after it has been created.
This setting is available from the survey settings while the survey is in edit mode.
The launch date and the automatic closing date are linked. To change the closing date, you must also update the launch settings.
Procedure
1. Open your survey
2. Click Edit survey to open the survey's parameters
3. Go to the Launch step
4. Update the launch settings to reflect the new schedule
5. Verify that the automatic closing date matches your desired schedule
6. Make changes to the reminder dates (if applicable)
7. Save your changes
The illustration below shows where to update the settings.
The dates shown in the screenshot are from a demonstration account and are provided for illustrative purposes only.
Be sure to save your changes before exiting the edit mode.