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.
Unfortunately, it is not possible to schedule a form to go live but it is possible to schedule it to close on a specific date and time.
You can set the "Expiration date" of your form which will disable your form on any specified date / time. This guide should help you: http://www.jotform.com/help/137-How-to-Limit-Submissions-in-a-Form
You cannot schedule your form to go live but what can be done is that you should keep your form disabled and manually enable it when you want to go live. This guide should help you manually disable and enable your form: http://www.jotform.com/help/180-How-to-Change-the-Status-of-Forms
Hope this helps.
Do get back to us if you have any questions.