Timestamp for each question answerd

Timestamp for each question answerd

Hi
I'm trying to create a survey using Zoho Creator forms.
I would like to know how much time it took each person to answer each of the question, in seconds. I'm guessing that I'll need some sort of button to know when the person added the answer or a way to proceed to a "new page" for each question.
 This parameter should be visible only in the DB.
I'd appreciate your help in the matter.
Thanks,
Eldad