GS is either 4/2 or 5/2. Sims are 5/2

So it's a minimum of 28 days for a/c training and as long as 32(?).

International guys get another 4(?) day course.

So you can plan on a minimum of 30 days, and perhaps 5-6 weeks depending on a/c and dom vs intl, from start of a/c training to IOE/LOE.