Give notice immediately and give them 3 weeks. If they want to ef around with your vacation, you can say that it's take it or leave it for you.It is very common to give notice immediately before or after a vacation period. It is not ideal as it can cause coverage shortages, but it is far from uncommon. Your resignation letter doesn't need to be detailed. Clearly state your intention to leave and when you will be leaving. While it is traditional to have a two week notice, it is possible to give more or less time. Exempt weeklypaid staff member is expected to give at least two (2) weeks notice. Need to write two weeks notice? While two weeks' notice is standard, many employers would appreciate a longer notice period, especially for retirement.