jeez....the world has to revolve around you new yorkers!??? lol You know there are millions and millions of people that dont live in the Eastern Time Zone....and ya know what? we are fine with it...we can convert it in mere seconds. It is probably because their head offices are in California...so they use the time zone that they work in. Make sense to me.
In case you havent figured it out yet. 3PM PT is the same as 6pm ET.