my friends are never on time - I always expect them at least half an hour after the invite.
I love that statement about time being more flexible the further South you go. It sums France up quite well. For the old bisous question, I tend to take the lead from the other person.
In business there is a trend towards the dress as you wish for the more blue chip companies, but financial types still would be expected to be dressed "business like" - if that makes sense.
@Maxime Good afternoon! I wonder if you are you simply trying to stir up trouble Maxime by added to a couple of posts that are over 6 years old? Hummmmm…
I appreciate English is not your first language so, some words of advice - be careful with your choice of words - we try to be polite here 
Of course (assuming you are French) - there is simply no excuse for the French language you’ve used - just not funny. It may simply be that you don’t want to understand that your behaviour is annoying for British people…???
Have a great day ! 
Huh??