This is a list of the time offsets by U.S. states, federal district, and territories. For more about the time zones of the U.S. see time in the United States. Most states are entirely contained within one time zone. However, some states are in two time zones, due to geographical, socio-political or economic reasons. States, federal district and territories See also History of time in the United States List of time zones Time in the United States References External links The Official U.S. Time in each time zone North American Time Zone border data and images NIST Internet Time Service US time zones differences USNO NTP Network Time Servers U.S. Standard Time Zone map U.S. cities and towns shown in their respective time zones at Internet Accuracy Project Time zone