The amount of time you spent in the interview is a significant determinant of how well it went.
Although you cannot exactly predict the outcome of every interview using these principles, they will nevertheless offer you a general sense in most cases.
For most job levels, a one-hour interview is a positive sign. Executive level professionals will experience 1-hour interviews more frequently than all other levels of employees since the hiring manager will interview higher level applicants in more depth.
In the realm of job interviews, 45 is the perfect number. This indicates that you took a little bit longer than the hiring manager had intended, but it's acceptable because they were interested in hearing more from you.
If your interview lasted 30 minutes, that was adequate time. For the majority of position levels, hiring managers would typically allot 30 minutes for an interview with a candidate.
We don't want to get things off to a terrible start, but if your interview lasted 15 minutes or less, it definitely wasn't very good.
They may have realized when you arrived for the interview that you did not meet the minimum qualifications for the role, and therefore they were not interested in wasting their time.
First, if you haven’t already, take a few moments to introduce yourself and build rapport with the interviewer. This will put them at ease and make them more likely to open up to you.
Second, try to ask probing questions that will get them talking about their experiences and opinions. Finally, thank them for their time and let them know you’re interested in the opportunity.