Time zones go east to west The first time zone to start the day is next to the international date line. The next one is west of that, and so on and so on until you get to the last time zone that starts the day, next to the international date line on the other side.
(Sigh) It was just an example, to point out how it would work if we were like China, not a suggestion to actually do it. Furthermore, if California went to eastern time, it wouldn't get dark at 2pm If it normally gets dark at 5pm pacific in California in December, that would be 8 pm Eastern, not 2pm. You went the wrong way.