Resignation notice

I was informed that a notice period of 90 days is expected when resigning, however, I believe that this is more of an ethical expectation rather than a legal requirement. In my opinion, a notice period of 60 days should be sufficient. I would appreciate any advice on how to handle this process in a respectful and professional manner.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Hematology / Oncology Source Type: forums