Their current turnaround time is 2 weeks for launching two different rockets, while their goal is to launch the same booster twice within 24 hours. That's a bit different and even more ambitious. The first "flight-proven" booster (to use Elon's phrase) took 4 months to refurbish, and the lessons learned from that are incorporated into the next version of Falcon 9 (Block 5) in order to simplify and speed up the process (and probably fix some things they noticed on the landed boosters to improve the number of times they can be flown).
Given the lead time it takes to develop a satellite project and have it ready to launch, there may even be a danger that within a year or two SpaceX will have so many boosters on hand and ready to go that there won't be enough demand around to meet their capacity. They already have a handful of re-flyable boosters lying around. The limiting factor on SpaceX will be their ability to churn out second stages. I'm sure that would balance out eventually, but it could take years for the customer demand to catch up with them.
