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 can change your timezone by following this way:
1- Login to your account.
2- Click on the person looking icon and then click on "Account".
3- In the account page, click on the "Settings" menu and then click on "edit" button.
4- Now you can select your timezone from the dropdown.
After applying these steps, you will see that your submissions' timezone has been changed. But to reflect the new timezone on the google spreadsheet, you should remove your integration and then integrate it again.
Your spreadsheet should show you the true timezone for you.
I hope it helps. If you need further assistance, please let me know.