Please help. 

I am using Zoho forms to have clients fill out forms that need to be timed. as in each form should be 'open' for about 10-15 minutes because of the nature of the form. 

Is this possible? 

If so. is it possible to have the first part of the form with instructions on a separate page. then once the client is ready to fill out the form the timer starts. 

Thanks in advance. 

PS: I have used zoho forms before, so not completely new to it. just need to know the time aspect.