How to add 2 list validations?

Hey SharePoint Fam,

Was just wondering if there is a way to add multiple list validations to a list.  I have created a list/form where I'd like users to only any entry as long as the Start Date is under 1/1/2017 and the hours is under 60.  

I have a field called Lock Date that automatically fills in 1/1/2017 12:00AM and a field called hours that calculates the total time.

I'm not sure of the syntax but currently the formula below works fine for actual date but how would I go about adding the hours part as well to the formula?

=[Setup Date & Time]<=[Lock Date]

Thanks N Advance