As most everyone says, no most interviewers won't care. In the small chance anyone ever asks why you took longer, just don't spin a whole sob story to explain. Just say 'personal circumstances' or so, very short and neutral, and quickly divert attention away to your GPA (if it stays good) to make it clear that it's not because you couldn't do the work.
I had an interviewee once who would try to explain everything that was remotely sub-optimal on his CV with long stories of how horrible his upbringing was and how hard he had it in life. I guess he was trying to get sympathy but all I heard was 'drama all around'. Now, being able to overcome adversity is a good thing in general, but there is a fine line between that and being desperate to blame everything on everyone else or emotionally blackmailing people.
So my advice, for what it's worth, is to not be seduced into giving long emotional explanations. Just say 'I had to work a full time job' or 'I had to finance myself' and leave it at that.