Looking to resign with a One Month Notice Resignation Letter? Use our resignation letter template for notice-period roles.An agency may choose to accept an employee's request to rescind his or her resignation within 30 calendar days of separation. The recommended timeline for providing a resignation letter is at least two weeks prior to your planned last day. This letter accepts an employee's resignation, noting their last day will be after serving out their required notice period according to their contract. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Generally, you should give two week's notice for your old job. That is the conventional standard. Because this serves as official notification of your leaving the company, clearly state the last day of work, your job title title and the company name. Moving up the date of the employee's resignation is permissible, but it can cause some problems.