Syntax Request for a Date/Time

Syntax Request for a Date/Time

I need the syntax for the following this code that is correct:

dealRecord = zoho.crm.getRecordById("Deals",DEAL_ID);
appsubmitRecord = dealRecord.get("App_Submitted");
info appsubmitRecord;

IF 

I need the syntax for how the "App_Submitted" is 10 days or older

THanks