I'm a current employee at Harris Teeter and I've been employed for a little over two months now. For most jobs, the customary two weeks notice is sufficient.Your notice should be two full weeks or 10 business days from the day you submit your resignation. Be clear about that date. Customer: I have an employee who put in a two weeks notice(Texas). We accepted the resignation and made it effective immediately due to many factors. Provide as much notice as possible, but the HCSO requires a minimum two-week notice. Learn how to write a professional two weeks notice letter with our easytouse template. A two weeks' notice has generally been seen as a common courtesy. Though both are used to inform supervisors that you've chosen to no longer work with them.