Advice Needed

I have just recieved mails informing me of job appointment interview( Mgt Trainee) with a nigerian conglomerate on one hand, and the Nigerian Airforce  (4 a Short service commision). I am currently employed with a growing IT firm. Choosing  a defined career path is agonizing enough, but my main concern is how to get away from work for the duration of these interviews (d 1st is 4 a day but the airforce's might be 4 a week at least). I need shots on how to go about this without having to resign my job