I think if you complete everything in NVC by the 3rd week in March, then the last week you'll get an interview date most likely for 5-6 weeks out...which would fall at 1-2 week of May.
they are giving random interview dates and only some of the NVC reps tell you this. My case completed mid December and my interview was scheduled for late February. And some other folks here have so just play it safe and dont cut it so close to your finals.
Ok cool. So how long does it take for the case to be completed? Usually like a week right? I would only be sending AOS stuff because I am getting the ds-230 stuff done this month. It's so hard to estimate with this process because every case is diff. Ugh.