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.


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    Is it possible to perform calculations with dates?

    Asked by artistic12 on December 06, 2016 at 10:17 AM

    Is there a trigger that can calculate DATE changes?

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    JotForm Support

    Answered by david on December 06, 2016 at 11:25 AM

    It is possible to calculate the difference between two dates or calculate another date using update/calculate form field value conditions:

    https://www.jotform.com/help/286-How-to-Pass-Field-Value-to-Another-Field

    If there is a specific calculation you are trying to achieve, let us know and we will be happy to help with what we can.

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    Answered by artistic12 on December 06, 2016 at 12:31 PM

    Yes, I have two date fields near the bottom of my form.  I want to take the ONE date, add 30 days IF a certain field was filled out, and add it to the other date.  I have it set up , but it does not work.

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    JotForm Support

    Answered by david on December 06, 2016 at 12:42 PM

    I set up a quick example form to show you how it would work:

    https://form.jotform.com/63367427084966

    An example condition would look like this: