Where do I find my internal timesheet process?

You'll need to ask your Administrator for this but don't forget to do so. If you're in a DCAA compliant environment, then one of the key criteria is that all employees know that doing a timesheet is part of their job and knowing what proper timesheet entry procedures are.

Knowing what is expected of you for your timesheet can save you time in entering it and let you know what procedures you must follow for getting the information into the system that will be used for so many other purposes later.