I've no idea how long - it seems ages. I think many of us just want them to get on with it as there's damage being done by the uncertainty. The hold up, I think, is because not everyone agrees that there should be a no-deal or if there is a deal what form that might take.
I guess these things are complicated... and we have idiots in charge :P
LOL there are some who would say it IS chaos! But the thing to remember too is that there had to be a transition period which allowed for negotiations.. ok so they have failed but..