Lenovo service = 5 days standard, possibly weeks if they're waiting on parts.
Thinkpad service = 16-48 hours, same-day or overnight depending on location and scope of problem. I have shipped a laptop to them in the early afternoon, and gotten it back fixed the next morning. They had FedEx drop off a shipping box within 45 minutes of me making the call, and I just had to call FedEx when the box was ready to be picked up (they paid shipping both ways). If you press them, they will ship the necessary parts to an authorized service center nearby you. You can then bring your laptop in and wait a couple hours while the repair shop performs the repair. (I suspect you can do this the other way round too - bring the laptop to an authorized...