You want to give at least a two weeks' notice. You can quit anytime for any reason or for no reason.If the contract says you are to give 30 days notice, and you don't, you are in violation of the contract. A sample form to document an employee's verbal resignation. Learn how to craft a professional resignation letter without notice with our guide. Explore more articles. This manual is designed to assist hiring managers with appropriate hiring processes and Human Resources practices. Use one of our resignation letter templates. A two weeks' notice resignation letter is standard practice, and these should generally be kept simple and to the point. Your resignation letter does not have to say why you're leaving the job.