It depends on interviewer. As per other forum members advised by their own physical interview it takes more than an hour but less than 1.5 hours.
Here are some example as below:
Interview
The visa officer can call the applicant for interview if he/she is not satisfied with the documents submitted to CIO or not satisfied with site visit/telephonic interview. The officer uses interview to raise all the concerns relating to employment, family etc. Usually the visa officer disclose the applicant about his/her interview result just after the interview. In case of positive outcome the applicant can get Medical/PPR in few days time.
Example 4 (Negative)
you are all very kind. here is a bit of history
I work in ............... in corporate planning and budget section. our daily activity is nothing crunching numbers and developing forecasts.
the VO was somewhat pre determined not to get me through, he did not ask for any documentation and when I highlighted he unwillingly took in my JD. the questioning started with bit of my history, I am a qualified CPA, ACMA, LFA and a masters in strategic management.
he asked me what I do, I explained a bit of my current role. my information was bit technical as well because it relates to oil and my previous role for automotive sector.
anyways at near end of the interview he said "we had a concern about your application as not in line with NOC ......... and I am not satisfied with your responses" I responded in asking which area can I explain further, he said " your answers are broad" I replied I am only answering your broad level question do you have any specific questions to ask for example you asked about capital management, do you want me to explain about individual perspective a corporate perspective or any product portfolio do you have in mind where I can be more specific. De had nothing to say.
he was typing everything I was saying, I asked him if you can read through what you have written !!! he had a good typing speed but when he started reading I felt the writing was very fragmented and not making any sense......I did make sense!!!!
well our interview last for more than one hour and 10 minutes!! I kept explaining and he kept writing...
at the very end may be because he did not want to give a bad feeling he said we will review and get back to you. at that moment he threw away my paper under his desk like rubbish. I said these are originals if he be kind enough to return and take photocopies instead...which he agreed !!!
so this is the unbiased version of the story. what I feel strongly is that we were not able to connect or may be I was too focused on explaining what I knew rather than what he wanted to listen....!!
I think the decision is final at his end, it was more or less the same case at the start of the interview ............. but this is all very confusing why did CIC accepted my application and why I was sent a confirmation letter. then all of a sudden an interview which was of the generic requirement as was sent o you all.....
I will request for a judicial review of the application and the scenario !!
let me know your thoughts !!
Example 5 (Positive)
Well, about my interview experience
It was just a pleasant discussion. the man appeared to be just awesome, we made good contact during the interview and that is very important, I kept smiling and cool and answer promptly. I was prepared to discuss many points which I prepared BUT i couldn't get the chance to speak about it, so, if you are doing the same mistake by trying to make list of points to talk about FORGET ABOUT IT. it was bad idea.
All what you need to do is:
1. Prepare the files by your self
2. Make two files, primary and supportive
3. KNOW EVERYTHING ABOUT YOUR PAPERS
4. Bring anything you think that it would help
5. Stay cool and make personal contact and for sure always make an eye contact.
6. Put your hands on the top of each others on the table so that the man can see and judge your body language.
7. Bring samples of your work, it would help
8. The files with protected transparent plastic sheets is very good idea, arrange the documents in the order they requested in the interview letter
So, all my time went into JD discussion in general and paper check and questions to make sure that I am genuine applicant nothing more, although it went for around an hour because I have 4 employment experience.
As many said here, if you are the one who prepared the file and you are genuine in terms of you made the duties in your reference letters and for sure that JDs does match the NOC details then the interview will be such pleasant one.