S2 Q&A: How long does the whole application take, start to submitted?

It depends almost entirely on how fast your documents arrive. With passport, I-94, I-20s, transcript and a recent bank statement in hand, the form itself takes a couple of hours; if you need an official transcript or a WES evaluation, add days to weeks (WES typically 2-4 weeks). Tell me what you already have and I'll tell you your critical path.