Congrats and welcome!

My only advice for this question would be to totally and completely disregard any and all answers to this question (including this one LOL).

It varies massively and rapidly, sometimes even for the same plane in the same class. I know a new hire who just got 320 and he got one week til training after indoc while all his classmates got nearly a month.

If your reason for asking is just baseline curiosity, then the answer doesn't really matter and is just chaff. If, OTOH, you're aiming to use that informaiton to base bidding decisions on, I'd say its better to completey remove that from your decision making process. You don't want to bid something because you think you'll get sooner or later training footprints only to be on your second or third choice with the opposite training footprint from what you expected.

Bid what you want and want what you bid.