Actually it's not a simple question. The clarifiers speed up the clearing of the wine, but don't really speed up the entire process (IMO anyway).
Even though I haven't made that many Winexpert kits, I will use their brand names (because they seem to be the best known - although many, including Malkore, don't seem to know the product lines - I wonder how many Chiantis WE makes).
The following time frames are for ME. Not everyone will agree, but hey that's life.
If I were to make an Island Mist kit, it would be bottled in 6-8 weeks, and we would be drinking it soon thereafter.
If I were to make a Vintners Reserve kit, it would be bottled in 8-10 weeks, and we would be drinking it a month or so later.
If I were to make a Vintners Reserve World Vineyards kit, it would be bottled in about 10 weeks, and we would be drinking it a month or two later.
Selection Original - about the same as VR World Vineyards.
Selection Estate or Limited Edition - bottle after 12-16 weeks - wait at least a couple of months to start drinking (and probably more)
Selection Crushendo - bottle after 16+ weeks - wait till it's at least a year old before thinking about drinking, and probably longer before making serious inroads.
So that ranges from ready to drink in 2 months to over a year.
When is your fruit wine ready to drink?
Steve