Present result of a past condition
In this type of mixed conditional sentence, the tense in the 'if' clause is the past perfect (third conditional), and the tense in the main clause is the second conditional (would/could etc. + inf.):
If I had studied I would have my driving license now. (but I didn't study and now I don't have my license)
I would be a millionaire now if I had taken that job. (but I didn't take the job and I'm not a millionaire)
There is an unreal past condition and its probable result in the present. These sentences express a situation which is contrary to reality both in the past and in the present. In these mixed conditional sentences, the time is the past in the "if" clause and in the present in the main clause.