I can detail a car in about 3.5 hours. Here's my procedure:
Apply Stoners Tarminator to all bug splatter, tar spots, and any other areas that washing will not remove. Let soak.
Open front door and spray degreaser in door jamb if needed and powerwash. Next do backdoor followed by trunk, moving around vehicle to other side following same procedure .
Spray wheels and tires with tire and wheel cleaner. Clean wheels then do tires. Rinse. This includes powerwashing the wheel wells.
Powerwash vehicle to remove loose soil, etc.
Wash vehicle with long handled brush. All stubborn spots will be removed from the Tarminator and carwash soap. Rinse. Quickly wipe down.
Remove floor mats and spray carpet cleaner and spot remover if needed, followed by powerwashing. Using either extractor or wet/dry vac, remove excess water and put aside to dry.
Roll down all windows and open all doors including trunk. Wipe all door jambs and trunk jamb with either a terry towel or cheaper microfiber cloth.
Remove all items in car (glove box, center console, etc,) and place in small plastic bags.
Using a air compressor, blow all vents, radio controls, side pockets, rubber seals around doors, etc.
Vacuum interior.
Apply dressing to front door panel and using compressor, blow into all crevices. Wipe up all wet dressing which will remove 95% of all dirt and will leave the surface looking new. Continue this on every door working your way around vehicle. Don't forget trunk.
Remove any stains that could not be removed with the dressing and re-apply dressing to these areas.
Move front seats forward as far as possible and repeat these steps to all applicable areas in back of vehicle. This includes seat supports mounted to floor, front seat backs if applicable, etc.
If back seats are leather or vinyl, do same procedure.
Move front seats back as far as possible.
Do entire dashboard as you did in the back. This includes pedals, vents, glovebox, etc. Every square inch.
Apply carpet cleaner to all carpeting. Apply spot remover at the same time.
Hand brush all areas or use an orbital polisher with the brush attachment. Lightly spray hot water from extractor to all carpet and vacuum. Repeat if stains are still present.
Repeat same procedure to all cloth seats if applicable.
Close all windows.
Spray door jamb boots and all exterior vinyl trim with dressing. This includes winsheild cowling, tires, wheel wells, door handles, etc. Wipe all areas sprayed including overspray on wheels.
Buff exterior with favorite product. Apply sealant, wax, etc.
Clean windows inside and out.
Apply dressing to all rubber seals around doors, trunk, etc.
Final wipe down of door jambs.
Quick vacuuming if needed.
Replace all floor mats.
Put all bags in trunk.
Your done!! I did not include claying or engine cleaning. This is something I rarely have to do. If needed, I would do both of these things at the begining of the list.