How long does a Refit take?

1 hour 46 mins to my next race and i want to know how long it take the Engeneers/ Mechanics to Refit the F1 car.
I've selected all parts so i figure it will take longer as a whole or does it time part by part?

Wondering the same thing, would really appreciate a reply.

It might need a better wording, as I didn't fully comprehend it, non native english speaker as I am.

Ahh Ty took it for a limit, my miss.

Another question, does that mean we can refit parts one by one within this 30mins or is there One Refit only at that 30min point?

Ahh, sadly my 2 car team could only refit 1 car for this race.
I'm a noobie to this genre, Is there a core reason we can't refit to our hearts content before the race?
We pay for the design and refit cost, what's 30mins of Mech manual labour.

you need to wait until you can hire more mechanics and engineers to do the refit

Would the optimal setup change after a refit?