what are the time zones in the U.S.
The Time Zones of the United States map layer shows the six standard time zones for the United States, and a seventh zone, which encompasses Puerto Rico and the U.S. Virgin Islands.Also shown are the areas in each zone that do not observe DST.he Time Zones of the United States map layer shows the six standard time zones for the United States, and a seventh zone, which encompasses Puerto Rico and the U.S. Virgin Islands.