I recently interviewed (8/10) in the 1st round interview of an MBB summer internship. Thought the case + fit went well, but I don't know for sure. They said they would contact us with results by 8/12 at the latest, with either a yes or no, but I haven't heard anything back yet.
Is it professional to follow up (with either my interviewer or the hiring manager) over the weekend or should I just wait until Monday? Should I accept that I haven't moved on? Any other tips in this situation would be helpful - thanks!