Confusion on time Schedule NVIDIA's August GPU Computing Webinars now open for registration.

Hi,

I got mail from NVIDIA about NVIDIA’s August GPU Computing Webinars now open for registration.

http://developer.nvidia.com/object/gpu_computing_online.html

But I have confusion on time shedule. In each topic It has 4 different time schedule.

I want to know

[b]Is it different time schedule for same concept presentation.

               OR

The whole topic is divided into 4 sections.[/b]

Please make me clear if any one know(specialy from NVIDIA side).