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This morning, Sunday, November 6, 2015, most of the U.S. switched from “Daylight Time” to “Standard Time.” Arizona, except for the lands of the Navajo Nation, Hawaii, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the US Virgin Islands never switch between “Daylight” and “Standard” time. They're always on “Standard Time,” so right now the entire U.S. including its territories are on “Standard Time.”
The switch between “Daylight” and “Standard” time doesn't universally occur across the globe. More than 100 countries never change to “Daylight Time” and many countries have chosen different dates to make the change than other countries.