At-will means no notice necessary from either side. No state or federal law requires you to notify your boss two weeks before leaving your job.If you're an at-will employee, you can leave at any time. 34-28-5. Separation from payroll -- Resignation -- Cessation because of industrial dispute. An employer satisfies the 24-hour time requirement. Does an employer have to honor a 2 week notice? Learn how to craft a professional resignation letter without notice with our guide. There are no federal or state laws that require an employee to provide two weeks' notice to his or her employer before quitting. Utah does not mandate a specific timeframe for advanced resignation notice, mirroring the flexible nature of "at-will" employment. Does an employer have to honor a 2 week notice?