What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I understand that you want to restrict your users to fill the form before a specific date. This can be achieved by hiding the fields based on a condition set on a date field to the date that you need.
Please see the demo JotForm below to see how it works.
Also, you can set an expiration date to the form in order to restrict your users to submit the form after the expiry date. Please refer to the following guide that can assist you with this :
Hope this information helps. Please let me know if you need any further assistance. We will be happy to help.