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.
You could use Date and Time picker widgets to achieve that, and if you want to constraint your users on which time they can choose for a certain date you can use conditions, for example.
You could also check this template that we have for scheduling: https://www.jotform.com/form-templates/interview-schedule-form
Please let me know if that helps.