How can i get help setting up a form?

Hi. I'm trying to set up a a time sheet for my staff but i cant seem to work out how to set it up correctly using form calculation and conditional logic and would like some help please. Do you offer this service or do you have jotform genies who you can refer me to? Thanks

Heres a guide that will explain how to work with dates and times:

Mastering Date and Time Calculation