I think it is around 5 hours, mine was done in a morning I think, did not wait around, got a call when it was done.
Careful going to cheap on your clutch kit otherwise you can end up with a hard pedal and fierce clutch on some of the cheap kits.
Mine was Borg & Beck cost me around £90 for the full kit, the young lady at the end of my street bought a £40 kit off ebay for her brava, it came in a plain white box, her dad fitted it and boy was it hard to push down and really strong coming back up as if the presure plate springs where to strong.
So just be a bit careful going to cheap.
I paid £180 for fitment, if that is any help.